v.i.or t. ;to stimulate the male genitals usually by use of the left or right hand according to preference,but may also be achieved by filling a milk bottle with chopped liver and leaving it somewhere warm for several hours before use."whacking off" almost inevitably leads to the ejaculation of the male seminal fluids.These are best caught adroitly in a Kleenex.The use of visual aids is widespread.
WHACKS OFF;"you the kids that been whacking off in mah toolshed over pictures of my wife.."

WHACKS OFF;"I whacked a great one off while watching Princess Di's funeral".
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When I've got morning wood I whack off!
by USAF Cadet October 21, 2020
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being married to your right hand; something that computer nerds can barely get.
I whacked off the other day on my computer and is was all over me.
by Fuck taht September 23, 2003
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Can mean one of two things:

1) To stroke a penis, either by masturbation or by doing it for someone else
2) To kill someone in Maphia lingo
For definition 1: "I'm whacking off right now.", "Your sister whacked me off last night."

For definition 2: "If I find out Lenny's wearing a wire, you're gonna whack him off.", "I'm going to whack you off if you don't whack off Lenny."
by deepspace10 November 21, 2011
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To down your drink.
I'll just whack off my pint, then I'm going home to whack off.
by Ben November 24, 2003
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Something extremely large or noisy.
"The car hit him and I heard this whack-off BANG"
"She has whack-off breasts." (This can also link to "whack off" meaning "to masturbate")
by Gabez November 29, 2009
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