(noun) a mooch, friend who constantly requests items or services with the false promise to repay the favor. usually ends up keeping items for longer than the agreed time period.

(verb) to ask to borrow or to ask for a favor
"yooo lemme borrow your controller ill give it to you tomorrow" *takes a week and a half to give it back
(3 days later)
"yooo lemme borrow your controller again"

"yooo sell me $12 worth of weed"

"you should let me yo guy your car for the weekend. im gonna try to yo guy my way into this girls pants"
by my sistas lasagna January 16, 2013
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