3 definitions by Dick Cheese

A word used when someone over exaggerates
Example:

Steve - I had sex with 50 men on the weekend

Bob - Staffs!
by Dick Cheese May 31, 2005
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Same meaning of "knob" but said differently to produce a different emphasis
by Dick Cheese May 31, 2005
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The backhanding of a man's genatalia causing extreme pain and can cause him to fall down and cry like a 6 year old girl.

A sac whack can be performed mid way through a conversation to maximise laughter and unexpected pain.
Eg:

Bob: "Hey man wanna go down to Smoky Jim's and get a bur-"
Steve: "SAC WHACK!" *backhands bob in groin*
by Dick Cheese June 24, 2005
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