whack off

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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raddin' the whack

stepping things up a notch
taking things to the next level/phase
doing something more briskly than usual
"We 'radded the whack' by going to tescos instead of sainsburys" (implying tescos is better than sainsburys)

being more aggressive suddenly in a game of american football is 'raddin' the whack'

to 'rad the whack' is to do something that little bit more extremely
by givinthebusiness019 October 22, 2009
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five whack

a catchy name for a 'fist bump'. where your fist hits another person's fist in a victorious manor.
by sugarbear35 December 24, 2010
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Whack Nut

A weirdo who is messed up and also stupid. An absolute speng lord.
by TomNation999 November 13, 2018
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gin whacking

To do pretty much nothing while at work. To be lazy and/or accomplish nothing throughout the work day.
Bob is worthless as hell. He is always gin whacking around.
by Word chaser August 23, 2009
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Heely-whacking

When one wears Heely shoes and pulls some serious tail by rolling by a line of ladies and smacking them on the ass.
Look at John over there, heely-whacking all of those chicas.
by heelywhacker August 20, 2010
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whack-volt

the electrical charge that instigates ejaculation when masturbating.
Here it comes, I just felt a whack-volt.
by Gummer May 07, 2008
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