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To leave your hot wife for a hotter but insane and possibly homicidal girlfriend.
"Aww dude, don't McNair Cari! Melissa owns seven guns!"
by Dedzpot July 07, 2009
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Used to declare dominance in regards to riding in the seat directly behind the front right seat in a vehicle. This is because that seat is behind the "shotgun" position.
4 friends walk up to a car.

Person 1: I call shotgun

Person 2: I call Mcnair

Person 3: damn, now I have to sit behind the driver.

This is because of how mcnair was behind a shotgun..

too soon?

Call "cobain" instead..
by UTEXAS January 24, 2010
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