Oh man... Lets see... So many. And most of these are movies that I watch with my friends to create our own "Mystery Science Theater 3000"
Troll 2 is probably at the top (Thankfully Rifftrax took care of that one). It doesn't even have Trolls in it! They are Goblins! "Nilbog is Goblins spelled backwards!"
Return of the Living Dead ("Hi! My name is Tina, I make my headbands out of telephone cords and hang out with Trash and Suicide!")
Troll 1 *sigh*