Dazed and Confused! Has to be one or the Big Laboski(sp?). People that love that movie know every word. On Tony Hawks pro tour he went to the actual bowling alley, had white Russians and quoted lines the whole time. Too funny. You forgot all the Horror movies. Those cheezy horror movies. Nazi Zombie surfers must Die. Blood sucking Nazi Zombies. Are just a few. The are so bad you laugh the whole way through. They are the best comedies every made!
Oh and lets not forget Creepshow!