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"All But Dissertation" -- someone who is working on a PhD, and has completed all requirements except the dissertation.
"I passed my prelims last week, so now I'm ABD."
by I'm almost ABD, Dude. September 19, 2003
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Average Beats per Day (referring to beating ones dick)
Yo bro my nigga jeff has an A.B.D of 12 he's a fucking crazy savage.
by the mystery nigga February 07, 2017
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already been done...
your buddy points out a girl and you say she's an "ABD". he should run away quickly.
by gary February 14, 2005
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That kick flizzle over that hand rail has ABD.

ABD, fool! So don't even try it.

That's bitch everything has ABD.
by Roger Bowie September 21, 2008
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Also known as "Asian Booty Disorder," it is an overused joke used by people who can't think of their own jokes. Also a reference from Poreotics, a dance crew from America's Best Dance Crew.
Asian 1: Hey, whatsup everyone?
Asian 2: I HAVE ABD !!!!
Asian 3: ABD ABD ABD!!!
Asian 4: AHH ABD ABD!
by I'maReggin April 01, 2010
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Abs By Default. When someone (particularly a boy/man) is so skinny that he can't help but have abs. He hasn't worked for them, he just can't help but have them.
Jimmy has ABD, he doesn't deserve his six pack.
by jyrytueytwatfuy February 12, 2014
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