Funniest Movies?

Beerfest.

Tropic Thunder

larry the cable guy in heath inspector

Don't forget Supertroopers, one of the best movies of all time.

Read the opening post.

My suggestions, in no particular order:

Airplane! (Classic comedy, pretty much anything with Leslie Nielsen is hilarious, which brings me to my next movie)
Naked Gun
Grandma's Boy (PLEASE TELL ME YOU'VE SEEN THIS SPECTOR)
40 Year Old Virgin
Both Harold and Kumar movies
Kingpin
Revenge of the Nerds
Dazed and Confused
Anchorman
Office Space
Friday
Rolling Kansas

.... I could keep going.

The Big Lebowski is offbeat, but I find it hilarious.

Grandma's Boy is a must (and Spector, like Thanatos, I would really hope you'd have seen it by now).

Run Ronnie, Run is another classic.

I third Grandma's Boy, it's the funniest shit. And the Friday series, most of the except the last one are hilarious.

I like the older Adam Sandler shit as well, like Happy Gilmore, Wedding Singer and Billy Madison.