look up any word, like dirty sanchez:
 
1.
when someone is so dismissive of, and unapologetic for, a mistake they've made that someone else needs to dismissively not apologize for them in order to point out their incredible lack of consideration for the world.
alan: dude, you just spilt your pabst blue ribbon all over my laptop and ruined it.

justin: oh, did i?

alan: yea dude. your bad.
by pseudodaniel November 19, 2009
 
2.
When someone does or says something that is totally reasonable, and you shun them for it because of your incompetence and utter disregard for others.
Boss: Hey Bon Qui Qui, did you mop up the back of the store earlier today like I asked you?

Bon Qui Qui: Ummmm No sir, mr. boss man. Clearly you see I just had these nails did and am in no condition or mood to be doing no damn mopping. your bad. shouldn've asked me such a stupid ass question.
by Big Tongs January 14, 2011