{In no particular order}
"It's not my fault my brain picks Sin City."
"The people in these towns, they're asleep. All day at work, at home, sleepwalkers. We wake 'em up."
Dean: What did you dream about? Sam: Lollipops and candy canes.
“I’m not a sniveling whiny little Cry-Buffy. I’m the nastiest girl in Sunnydale history. I take crap from no one. Back off Polygrip!! You think you're bad? All mean and haunty? Picking on poor pathetic Cordy. Well, get ready to haul your wrinkly translucent ass outta this place, cuz lady.... the Bitch is back.”