I think the context you added as a clue helped eliminate some movies from being the answer, but definitely still having trouble with this one! For whatever reason it keeps evoking "It's Always Sunny in Philadelphia" quotes in my head which isn't helpful since it's a TV show.
I know it's not this but I'm guessing it just to get things started in hopes of getting another clue: Pineapple Express (2008)?
I'll give you a more direct hint about the context: "You do" implies someone said that I [verb] something. But I say that in response to someone calling me [an adjective], which doesn't make sense.
Oh man, alright this has to be Joe Dirt right? I remember him saying "you do!" as a comeback to "you suck" so I'm guessing he misused it as a comeback later on. It could also possibly be the sequel but the first movie is definitely beloved with the sequel generally being not so much.