Top definition
A gun; a sidearm; something which allows you to protect your bodily integrity.

Used extensively by rappers from Queens.
I got the Guard-U for you and you (meaning I got a gun, dont Fuck wit me!) Source: Noreaga hailing from Queens Bridge Projects (or in Noreaga vernacular: Lef Rac City Queens!)
by Ryan E. Bates August 11, 2005
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