Top Definition
An exhortation to exhibit manliness; an imperative said to an individual whose conduct is causing a suspicion of a lack of testicles.
robby: O, you bounced the quarter into my cup, that means i must partake, but i have been over-served, i must abstain.

kaz: dude, have sack!

by abelard September 19, 2007
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.