MrCheese: I'm so angry, I can swear!

TheGentleman: ok, but 'crap' doesn't count

MrEgg: neither does 'fudge' or 'shoot'

MrCheese: dang it

Player: let's be real, he can't swear-

MrCheese: f*ck off Player!

Player: *steps back in fear*

Captain: he became too powerful... EVERYONE, RUN! HE'S GONE INSANE!

In my headcanon, MrCheese only swears when he's feeling a strong emotion. When he's horny he will swear too. If he swears when he's angry, you gotta run bro, he will slide ya in half when he finds you...