A shortened version of bad ass/badass. It is also a "cleaner" alternative to using the real word, like if you're around kids or something. Used less often when referring to a person though (as is the case with "bad ass"), more often used to describe object, events, etc. Also IM/text shorthand for bad ass.
"Dude that shirt is bad a!"

Cindi: "Are you going to the concert?"
Rick: "Yeah, I hear it's supposed to be totally bad a."
by Mountain Girl August 25, 2008
poeple who dont giva a crap about nothing
Girl your a super bad A now! cuz u in the BASC!
by jenns December 6, 2003
1- A polite way of calling a female a notorious thot
2- Used to describe a female who has mastered the art of playing with males emotions and breaking hearts
3- Basically a graduated hoe, like some PhD shit
1- "Bruh why isn't you putting a ring on Amanda"

" Hell no, she's been everywhere.. She's a le bad-bad..."

2- "Bro why is you crying?"

"It's Paige bruh.. I had no idea y'all were serious when you said she's a le bad-bad.. She broke my heart.."
by @TheOGbadboyBW January 14, 2019
A phrase used to describe something that’s terrible but not THAT terrible. It is often used to downplay a thing or situation.
Jay: Don’t worry mate, your hair cut is not that bad.

Dwayne: Don’t lie to me it’s horrible!
by JayA559 December 5, 2018
A phrase people in the Danville, California (particularly San Ramon Valley High School) area use in a sarcastic, rhetorical manner. Typically used to descrive things as "very good." Variations include "Was it bad", "Was/is it kinda", "Was/is it remotely bad", etc. Use this phrase if you want to be punched in the mouth
"Yo, I heard you laid pipe on Alyssa last night."
"(Rips juul) Yeah I have been hella."
"Damn, is hitting that nice?"
"Is it bad?"
"Get the fuck away from me"
by Go wolves January 31, 2018
An expression typed by 12 year-olds and other minimally educated individuals who seem to forget that the grammatically correct form of the expression is "too bad."
LOLRoxoR37: To bad ur so dum
BenWRabbit: Too bad you seemed to have stopped learning at a third grade level.
by TommyOkktane January 29, 2004