Lots to agree with here but I can’t believe I don’t see Snatch anywhere.

Tropic thunder

See No Evil, Hear No Evil
Grabbers
Kung Fury

Elf.

Penguins (of Madegascar): The Movie is the funniest film ever made and infinitely quotable.

Not a movie but every few years I do a rerun of Scrubs (but not the last season).

Grandmas boy and role models.

I'll just second OP and say that my girlfriend keeps watching that real shit over and over to the point that we can almost act out the entire thing.

I love White Chicks also, one of my top movies along with Mean Girls and Bridesmaids

The Other Guys

Lego Batman. If you haven't seen it, go; go now.

hot shots part deux

Bowfinger

Sean of the Dead and Clerks.

Superbad. Airplane

I watch both VERY often and still love all the jokes

It's a Mad, Mad, Mad, Mad World leaves me in stitches every time.

The House Bunny

Kung Fury

The Court Jester.

Without a paddle. I haven't seen it in a few years but I remember just absolutely cracking up over it.

The Return of the Pink Panther

Most of my favorites have been mentioned, but I haven't seen The Party (1968) or Clue (1985) mentioned yet.

Austin Powers. Introduced my dad (who bears a striking resemblance) to it and we had a right laugh watching together

White Chicks as well. Total classic in Brazil since release.

Hotel Paradiso

Platoon

The Incredible Bulk.