Leo Getz:Leo Getz, private investigator. Martin Riggs:[into phone with fake accent]Private investigator? Yes, Mr. Getz, I was just wondering if you'd be willing to investigate my privates. Leo Getz:Investigate what? Martin Riggs:My privates, you stupid shit - shut the fuck up!

Martin Riggs (Mel Gibson), Leo Getz (Joe Pesci) in Lethal Weapon 4 (1998)

Source:IMDb