Gus' Nicknames
I've tried to include all the names Gus has been called, not just the ones Shawn gave him. If I've missed anything, please let me know in the comments.
Peter Panic - 1x03 “Speak Now or Forever Hold Your Piece”
Silly Pants Jackson - 1x05 “9 Lives”
Francois - 1x07 “Who Ya Gonna Call”
Chocolate Columbo & Magic Head - 1x08 “Shawn vs. The Red Phantom
Dr McTock - 1x09 “Forget Me Not”
Earnest Lambert Watkins - 1x13 “Game, Set, Murder”
Gus T. T. Showbiz - 2x01 “American Duos”
Ovaltine Jenkins - 2x04 “Zero to Murder in Sixty Seconds”
Burton “Oil Can” Guster - 2x05 “And Down the Stretch Came Murder”
Debrick Shaw Stillington - 2x06 “Meat is Murder but Murder is Also Murder”
Schmuel Coen - 2x08 “Rob-a-By Baby”
Galileo Humpkins - 2x09 “Bounty Hunters!”
Skooney “U-Turn” Singleton - 2x10 “Gus’ Dad May Have Killed an Old Guy”
Knick-Knack - 2x12 “The Old and the Restless”
Lavender Gooms - 2x13 “Lights, Camera, Homicido”
Fingers - 2x14 “Dis-Lodged”
Tan (later says it’s Tangus) - 2x15 “Black and Tan”
Bruton Gaster & Patty Simcox - 2x16 “Shawn (and Gus) of the Dead”
Fearless Guster & Lemongrass Gogoloab - 3x01 “Ghosts”
Die Harder & Squirts Macintosh - 3x03 “Daredevils”
Ernesto Agapito Garces con y a de Abelar - 3x04 “The Greatest Adventure in the History of Basic Cable”
Methuselah Honeysuckle - 3x05 “Disco Didn’t Die, It Was Murdered”
Chesterfield McMillan (and Wife) - 3x06 “There Might be Blood”
Longbranch Pennywhistle - 3x07 “Talk Derby to Me”
Scrooge Jones - 3x09 “Christmas Joy”
Hummingbird Saltalamaccia - 3x10 “Six Feet Under the Sea”
Step Anthony Wally Ali - 3x12 “Earth, Wind and Wait for It”
Dekwan “Smallpox” Randolph - 3x13 "Any Given Friday Night at 10pm, 9pm Central"
Hollaback Atcha - 3x14 “Truer Lies”
Killer B (Jason), Lumpkin… (interrupted), Slicks (himself) & Fearless Guster - 3x15 “Tuesday the 17th”
Trapezeus Milkington & Sterling Cooper - 3x16 “An Evening with Mr. Yang”
Jazz Hands - 4x02 “He Dead”
Shawn (no relation) - 4x04 "The Devil's in the Details... and the Upstairs Bedroom"
G-Whiz (college), Gus Brown & John Slade - 4x07 "High Top Fade-Out"
Bob Adams, Rich Fingerland, Black Magic, Cheswick & Harry Monroe - 4x08 “Let’s Get Hairy”
Donut Holstein - 4x09 “Shawn Takes a Shot in the Dark”
Ghee(Guy?)Buttersnaps, AKA "The Heater." - 4x10 “You Can’t Handle This Episode”
“Guts”, Old Ironside & Old Iron Stomach - 4x15 "The Head, the Tail, the Whole Damn Episode"
Jonathan Jacob Jingly Smith - 5x01 “Romeo and Juliet and Juliet”
Santonio Holmes & Dion Richmond - 5x02 “Feet Don’t Kill Me Now”
Gurton Buster (Roy) - 5x03 “Not Even Close Encounters”
Chaz Bono - 5x04 “Chivalry Isn’t Dead, but Someone Is”
Chocolate Einstein, MC Clap Yo Handz, Crankshaft, Mrs. Whiddlebury, G-Force & Sher-black-lock - 5x05 “Shawn and Gus in Drag (Racing)”
Imhotep & Control-Alt-Delete - 5x06 “Viagra Falls”
Yasmine Bleeth - 5x10 "Extradition II: The Actual Extradition Part"
Lodge Blackmunn - 5x12 “Dual Spires”
Mission Figs - 5x13 “We’d Like to Thank the Academy”
Radio Star, Gusjay Gupta & Original G-String, aka Crowd-Pleazah - 5x15 “Dead Bear Walking”
Don Cheadle Jr. (Yin) - 5x16 “Yang 3 in 2D”
Tap Man, Watson Williams & Benedict Arnold Jackson - 6x04 "The Amazing Psych-Man & Tap Man, Issue #2"
Suggs - 6x06 “Shawn, Interrupted”
Ingle Woods - 6x07 “In for a Penny”
Brutal Hustler, Barton & Braxton - 6x10 "Indiana Shawn and the Temple of the Kinda Crappy, Rusty Old Dagger"
Fellatio del Toro & Eddie Adams - 6x11 "Heeeeere's Lassie"
Larenz Tate - 6x12 “Shawn and the Real Girl”
G-Whiz - 6x13 “Let’s Doo-Wop It Again”
Hammerin’ Gus - 6x15 “True Grits”
Sh’Dynasty - 6x16 “Santabarbaratown”
Gurn Blandsten & Satchel Gizmo - 7x01 "Santabarbaratown 2"
Immaculate Conception - 7x02 “Juliet Takes a Luvah”
Pootie Tang (Kate) & Nutella (Kate) - 7x03 “Lassie Jerky”
Domo Arigato Mr. Roboto - 7x05 “100 Clues”
Jonas Gustavsson - 7x08 “Turn Right or Left for Dead”
Blue Ivy Carter - 7x09 “Juliet Wears the Pantsuit”
Bill Uvrights - 7x10 “The Santa Barbarian Candidate
Vijay Armitraj, Django Unchained, A Player Named Gus & Burton Goutster - 7x12 “Dead Air”
Mr. Nussbaum & My brother Daryl - 7x13 “Nip and Suck It”
Burton Trout & Bad News Marvin Barnes - 7x14 “No Trout About It”
Lil Wayne, King Mongkut & Gigi van Trenh - 7x15-16 “Psych: The Musical”
The Wizard, Buster (Despereaux) & Busby (Despereaux) - 8x01 "Lock, Stock, Some Smoking Barrels and Burton Guster's Goblet of Fire"
Recap McGee & Trending on Twitter - 8x02 “S.E.I.Z.E. the Day”
Robert Jones & Burteen Gusten - 8x03 "Remake A.K.A. Cloudy... With a Chance of Improvement"
Darnell (Woody) - 8x04 “Someone’s Got a Woody”
Denzel Diggs Underwood Morris Chestnut Washington - 8x05 “Cog-Blocked”
Burton Guster Black-Spencer & Blackstone (Simpson) - 8x09 “A Nightmare on State Street”
Peter Panic - 1x03 “Speak Now or Forever Hold Your Piece”
Silly Pants Jackson - 1x05 “9 Lives”
Francois - 1x07 “Who Ya Gonna Call”
Chocolate Columbo & Magic Head - 1x08 “Shawn vs. The Red Phantom
Dr McTock - 1x09 “Forget Me Not”
Earnest Lambert Watkins - 1x13 “Game, Set, Murder”
Gus T. T. Showbiz - 2x01 “American Duos”
Ovaltine Jenkins - 2x04 “Zero to Murder in Sixty Seconds”
Burton “Oil Can” Guster - 2x05 “And Down the Stretch Came Murder”
Debrick Shaw Stillington - 2x06 “Meat is Murder but Murder is Also Murder”
Schmuel Coen - 2x08 “Rob-a-By Baby”
Galileo Humpkins - 2x09 “Bounty Hunters!”
Skooney “U-Turn” Singleton - 2x10 “Gus’ Dad May Have Killed an Old Guy”
Knick-Knack - 2x12 “The Old and the Restless”
Lavender Gooms - 2x13 “Lights, Camera, Homicido”
Fingers - 2x14 “Dis-Lodged”
Tan (later says it’s Tangus) - 2x15 “Black and Tan”
Bruton Gaster & Patty Simcox - 2x16 “Shawn (and Gus) of the Dead”
Fearless Guster & Lemongrass Gogoloab - 3x01 “Ghosts”
Die Harder & Squirts Macintosh - 3x03 “Daredevils”
Ernesto Agapito Garces con y a de Abelar - 3x04 “The Greatest Adventure in the History of Basic Cable”
Methuselah Honeysuckle - 3x05 “Disco Didn’t Die, It Was Murdered”
Chesterfield McMillan (and Wife) - 3x06 “There Might be Blood”
Longbranch Pennywhistle - 3x07 “Talk Derby to Me”
Scrooge Jones - 3x09 “Christmas Joy”
Hummingbird Saltalamaccia - 3x10 “Six Feet Under the Sea”
Step Anthony Wally Ali - 3x12 “Earth, Wind and Wait for It”
Dekwan “Smallpox” Randolph - 3x13 "Any Given Friday Night at 10pm, 9pm Central"
Hollaback Atcha - 3x14 “Truer Lies”
Killer B (Jason), Lumpkin… (interrupted), Slicks (himself) & Fearless Guster - 3x15 “Tuesday the 17th”
Trapezeus Milkington & Sterling Cooper - 3x16 “An Evening with Mr. Yang”
Jazz Hands - 4x02 “He Dead”
Shawn (no relation) - 4x04 "The Devil's in the Details... and the Upstairs Bedroom"
G-Whiz (college), Gus Brown & John Slade - 4x07 "High Top Fade-Out"
Bob Adams, Rich Fingerland, Black Magic, Cheswick & Harry Monroe - 4x08 “Let’s Get Hairy”
Donut Holstein - 4x09 “Shawn Takes a Shot in the Dark”
Ghee(Guy?)Buttersnaps, AKA "The Heater." - 4x10 “You Can’t Handle This Episode”
“Guts”, Old Ironside & Old Iron Stomach - 4x15 "The Head, the Tail, the Whole Damn Episode"
Jonathan Jacob Jingly Smith - 5x01 “Romeo and Juliet and Juliet”
Santonio Holmes & Dion Richmond - 5x02 “Feet Don’t Kill Me Now”
Gurton Buster (Roy) - 5x03 “Not Even Close Encounters”
Chaz Bono - 5x04 “Chivalry Isn’t Dead, but Someone Is”
Chocolate Einstein, MC Clap Yo Handz, Crankshaft, Mrs. Whiddlebury, G-Force & Sher-black-lock - 5x05 “Shawn and Gus in Drag (Racing)”
Imhotep & Control-Alt-Delete - 5x06 “Viagra Falls”
Yasmine Bleeth - 5x10 "Extradition II: The Actual Extradition Part"
Lodge Blackmunn - 5x12 “Dual Spires”
Mission Figs - 5x13 “We’d Like to Thank the Academy”
Radio Star, Gusjay Gupta & Original G-String, aka Crowd-Pleazah - 5x15 “Dead Bear Walking”
Don Cheadle Jr. (Yin) - 5x16 “Yang 3 in 2D”
Tap Man, Watson Williams & Benedict Arnold Jackson - 6x04 "The Amazing Psych-Man & Tap Man, Issue #2"
Suggs - 6x06 “Shawn, Interrupted”
Ingle Woods - 6x07 “In for a Penny”
Brutal Hustler, Barton & Braxton - 6x10 "Indiana Shawn and the Temple of the Kinda Crappy, Rusty Old Dagger"
Fellatio del Toro & Eddie Adams - 6x11 "Heeeeere's Lassie"
Larenz Tate - 6x12 “Shawn and the Real Girl”
G-Whiz - 6x13 “Let’s Doo-Wop It Again”
Hammerin’ Gus - 6x15 “True Grits”
Sh’Dynasty - 6x16 “Santabarbaratown”
Gurn Blandsten & Satchel Gizmo - 7x01 "Santabarbaratown 2"
Immaculate Conception - 7x02 “Juliet Takes a Luvah”
Pootie Tang (Kate) & Nutella (Kate) - 7x03 “Lassie Jerky”
Domo Arigato Mr. Roboto - 7x05 “100 Clues”
Jonas Gustavsson - 7x08 “Turn Right or Left for Dead”
Blue Ivy Carter - 7x09 “Juliet Wears the Pantsuit”
Bill Uvrights - 7x10 “The Santa Barbarian Candidate
Vijay Armitraj, Django Unchained, A Player Named Gus & Burton Goutster - 7x12 “Dead Air”
Mr. Nussbaum & My brother Daryl - 7x13 “Nip and Suck It”
Burton Trout & Bad News Marvin Barnes - 7x14 “No Trout About It”
Lil Wayne, King Mongkut & Gigi van Trenh - 7x15-16 “Psych: The Musical”
The Wizard, Buster (Despereaux) & Busby (Despereaux) - 8x01 "Lock, Stock, Some Smoking Barrels and Burton Guster's Goblet of Fire"
Recap McGee & Trending on Twitter - 8x02 “S.E.I.Z.E. the Day”
Robert Jones & Burteen Gusten - 8x03 "Remake A.K.A. Cloudy... With a Chance of Improvement"
Darnell (Woody) - 8x04 “Someone’s Got a Woody”
Denzel Diggs Underwood Morris Chestnut Washington - 8x05 “Cog-Blocked”
Burton Guster Black-Spencer & Blackstone (Simpson) - 8x09 “A Nightmare on State Street”