"I think it's either Santa Claus Conquers the Martians or Roadhouse."

[zk273]

So there's a thread on /m/ in which everyone posts pics while quoting the seminal MST3K holiday classic, Santa Claus Conquers the Martians.

Man, I really do love 4chan sometimes. :D

ADDENDUM: Now we've moved on to the not-quite-as-seminal-but-still-classic Santa Claus.