A group of four people, or more specifically, two couples, in a polyamorous relationship.
Bob: You and your wife seem awfully friendly with that other couple.
Ted: Yeah, I didn't know how to tell you, but we're a quad.
Bob: What's a quad?
Ted: We're all boyfriends and girlfriends.
Bob: At the same time?
Ted: Sometimes 8-)
by swaydo July 13, 2008
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1. all-terrain vehicle

2. quadruple-stack of the drug ecstasy
im gonna ride the quad on the trails through the woods

lets pop a quad and fuck
by crackson May 16, 2007
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Another word for the rocket launcher in the xbox game Halo.
by mac September 12, 2003
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1)Mostly known on HBCU campuses as the hang out spot.
2)Home of the divine nine's territory, on HBCU campuses
3)Also known as the yard
1)Meet me on the quad so we can chill.
3)The Kappas run the quad at BCU
by BCU2889 May 19, 2008
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A flashy drink full of cheap shots that even the Irish find distasteful. Vegan (as it contains absolutely no traces of meat) and lacks any kind of consistency. Has a tendency to make all around it collapse when it is spoilt. Regularly devoured by Samoans, but makes New Zealanders (amongst others) sick upon sight.

Named after Australian Quade Cooper
"I thought she was cool, but when she ordered a tray of Quades I knew she was full of shit"
by AntsGardiner September 12, 2011
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Descriptive of a person in a negative way. Quade can mean anything as long as it is used as an insult. New form created by Irish Ian to represent the official catchphrase of class of 2008. Takes the place of "tool."
"Dude, you're such a quade!" (fag, idiot, dumbass, nerd, freak, etc.)
by ZM May 14, 2005
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Shortened form of quadraphonic, which is what surround sound was called before it went out of style in the 70s.
You should have heard Pink Floyd's Wish You Were Here in quad!
by Downstrike September 13, 2004
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