"Garbage day!" (Silent Night Deadly Night 2)
"They're eating her...and then they're going to eat me! Oh my gaaawwwwddd!" (Troll 2)
"Yeah, be rational, sure. I'm a fucking werewolf, for Christ's sake!" (An American Werewolf in London)
"Who died and made you fucking king of the zombies?" (Shaun of the Dead)
"I'm here to kick ass and chew gum, and I'm all out of bubblegum!" (They Live)
"I need to take a shower" (Any movie featuring Linnea Quigley)
"I've seen enough horror movies to know any weirdo wearing a mask is never friendly." (Friday the 13th VI)
Just a few I would've added, there's others that don't come to mind now.