A quarter of an ounce (two eighths) of marijuana.

When you eat dirt for the first time and leave your family to build a shack in the woods

Muscle group in the legs composed of 4 different muscles. Look best when striated and HUGE (30+ inches)

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.

Noun: British public school and university slang for the square open meeting place enclosed between the school or college buildings. Short for 'quadrangle'.

Term referring to a 4x4 dirt ATV (all terrain vehicle).

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.