A quarter of an ounce (two eighths) of marijuana.
Yo, hook me up with a quad for $75
by Blenk Master Flex September 26, 2003
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A slang term originating from the video game Mass Effect 2 that is used in the same context as balls.

In Mass Effect's setting, the term "quad" refers to krogan testicles, due to the fact that they've got four balls.
Matriarch Aethyta: Ha! Kick him in the quad! Sorry, my father was a krogan.
by Flash Dude April 13, 2011
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Noun: British public school and university slang for the square open meeting place enclosed between the school or college buildings. Short for 'quadrangle'.
"Cricket practice starts at 2:30 so I'll meet you in the quad at 2:15."
by Kilkrazy July 1, 2004
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Term referring to a 4x4 dirt ATV (all terrain vehicle).
by Joshiro007 March 9, 2003
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A four man multi-kill in the infamous game of Call of Duty. A full orgasm is only achieved if this is done with a sniper rifle, which will cause one to soil themselves and repeatedly try to mimic Operator Perry as well as worship Grizz. Screams of fanboism usually follow.
I think I'ma go for that spawn snipe...QUAAAAAAD!!!!! {jizzes now}...HOLY S#1T!!!!...quad!!!!...oh grizzz....grizz.....
by xCrodx September 10, 2010
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1. a quadriplegic (derogatory)

2. a quarter once of an illegal drug, usually cannabis

3. a prison
That quad thinks he is better than me.
by The Return of Light Joker February 24, 2008
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Slang term for the word BassLow frequency oscillations produced by rapid movement of large volumes of air at multiple cycles per second thus producing a very low rumbling sound that is harnessed and used in music form
by Justice October 16, 2002
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