What do you call a pissed off midget?
A micro-aggression.
Alright, listen up, you chucklehead. The joke is playin' on words. See, a "midget" is a little person, and "micro" means small. So, a "micro-aggression" sounds like it's somethin' a tiny person would do when they're angry. It's like callin' a short temper a "vertically challenged" mood. Now, go back to watchin' cartoons, genius.