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
an acronym for "dumb ass"
Example 1: Gosh mike.. you're such a d.a!
Example 2: Maaannn i aint readin dat d.a book!
Example 3: Yous a mofo d.a!
by Dont Judge Me August 21, 2011
short for soda for efficiency purposes when ordering through the drivethrough
"I'll take one large da, 2 cheeseburgers, oh and two other da's."

"Can I get you ladies some da.
by dadadadaman February 11, 2010
Dumbledore's Army. Started by Harry Potter, Ron Weasley and Hermione Granger in 1995 in their 5ft year at Hogwarts. Was later run by Ginny Weasley, Luna Lovegood and Neville longbottom in 1997.

Started Because the school was no longer teaching them how to protect themselves against the Dark Arts.

Headquarters: Room of Requirements
Harry, Ron and Hermione started DA becasue Umbridge was only teaching theroy in Defence against the dark arts.
by StarFar January 19, 2011
Da is a word used in Ireland,mainly the dublin area and it is short way of saying dad.
People say I look like me Da
by barry brady October 10, 2006
Deerfield Academy - the best prep school in the nation
DA isn't arrogant, it's just better than your school
by danks April 08, 2005
used in a situation when one is so confused that he cant make audible and coherent sentences.
joe: i just caught your g/f making out w/ my sister
bob: da?
by da? August 07, 2003
'Da', in street language, is the principle definite article and equivalent to 'the' in more formal English.
The use of the the /d/ derives from two main aspects:

-to add emphasis on a phrase

-quicker and easier to ignore the 'th' sound, usually for non-native English speakers (such phenomena is prominent in the word 'ting' rather than 'thing.')

Other variations of this include:

-dis (this)

-dat (that)
Person 1: Who did dat?

Person 2: Da person over der.
by rexo48 August 08, 2011

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