'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 8, 2011
Get the Da mug.
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 20, 2011
Get the DA mug.
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
Get the da mug.
Das is {sad} backwards and das is {not good}
Therapist: And what do we say when we fill this way?
Person: Don't be sad. because sad backwards is das. and das is not good.
by Lilnoodle July 6, 2020
Get the DAS mug.
that slow ass mofo with the pink monkey friend on nick jr.
comminly in an insult
get outa here witch yo da da da dora looking headass
by i make new phrazes May 14, 2018
Get the da da da dora mug.
A shortened word for thats
"das sensational" or
"das really great"
by coate June 6, 2004
Get the das mug.
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 8, 2003
Get the da? mug.