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short for Dumbledore's Army, as made up by Ginny Weasley in Harry Potter and the Order of the Phoenix.
Cho: When's the next DA meeting?
Hermione:Check your enchanted Galleon you crybaby moron!
by bjmart June 29, 2005
Dumbass Syndrome.
Guy 1:We should get that guy a shirt with D.A.S printed on it!
Guy 2: Why?
Guy 1: He obviously has a severe case of D.A.S
by Whaleface March 23, 2010
Short for Dumbass. Pronounced d-a, not da
He's such a DA.
by lcubed February 09, 2009
As in you DA
short for dumbass
Good job DA, Your such a DA
by Marked Man November 13, 2007
A word used as a general term for one's friend in India (mainly Bangalore), analogous to "dawg". From the Tamil. Sometimes prnounced "duh" by more urbanized south Indians.
Wassup, da?

Da, I could hump that chick right now...

Fuck you Da
by SolipsisMan May 02, 2005
When your in public with a guy (or girl?) and you see a chick with a nice ass you just say "DA" and everybody knows to start looking for "Dat ass" hence the "DA". done best with dark or mirrored sunglasses that cover all of your eyes.
Bob: dude..."DA"

Bill: where?

Bob: there!

Bill: Woah...

Bob: yeah...
by dhanson94 July 08, 2011
someone who thinks they know what they're doing but doesn't. a real tool. they love that they're a da, you'll see a huge smile from them when you say, "your a da."
that kid is a huge da
by regman17 April 18, 2011
def.- abbreviated acronym for designated asshole; term used to describe someone or something (believed or try to convince oneself and others ) to be a chosen superior due to "has been" thoughts of grandeur.
ex. "In a fight, my boy took my car battery from under the hood and held it hostaged as his way of letting me know I wasn't going any where?!

" So now what?!" he boasted
" What? Who in the fuck do you think you are huh?"
" Im your Dad!" he smirked
" Yeah. You're a D.A.D. alright; Designated Asshole of the Day!! GO UNFUCK YOURSELF!!!"
by chestnut sprinkles November 10, 2009