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1. atd
Anal Then Dump.
My girlfriend is being really clingy lately, what should I do? ATD, bro.
2. ATD
Anal tongue dart. To thrust ones tongue into an anus.
Your mom is the master of the ATD.
by Richard Dragon Dec 14, 2003 add a video
3. ATD
Stands for Awaken the Douche. Which is actually a shitty hardcore band from Yucaipa, Ca. Their real name is Awaken the Nameless. They suck.

http://www.myspace.com/awakenthenameless
"Dude last night I went to a shitty show, ATD headlined."

"Oh no wonder it was shitty."
4. ATD
Afghan Till Death, a group of Afghans who have beef with the AFG afghan crew in Toronto.
Ya go to a Afghan jam in Toronto and ya see da AFG crew, u go up to dem boys n ya do ya thing cuz u da ATD crew.
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