Top Definition
An unpleasant name for someone. Sack = Scrotum, nut = testicle, sacknut = scrotumtesticle.
"You are a sacknut", "Oi! Sacknut" or "Hello sacknut".
by Chubbs McGroin November 20, 2006
Your ballsack.
Oh shit man, that almost hit me in the sacknuts
by That Druid Man June 24, 2011
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