(v) To masturabte and then fall asleep
"Yo dawg, I'm down to go see Toy Story 3 with you tomorrow but right now I'm horny and tired, so I'm going to whack it and pack it."

"After such a tiring day, I really need to just whack it and pack it, tonight".
by MistaDietSoda July 3, 2010
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There are a number of definitions to this phrase, two of the commonest being:
1) Someone whose behaviour does not conform to society’s norms. It can be applied to a broad range of people, from those who are slightly eccentric to others who have completely lost touch with reality and need psychiatric help. The phrase can even be qualified to show the degree to which the person is affected. If the person was only mildly eccentric, they would be described as 'a bit of a whack job', if the behaviour was rather more weird then they might be described as 'a proper whack job'. If the person was seriously insane then they would be 'a total, out-and-out, raving whack job'.
2) A professional killing, also known as a hit. The whack part comes from the victim being killed (whacked), the job from the fact that this is done for payment by a professional (it's his or her job).
1) If you’ve got problems with your car, see Georgie; he’s a bit of a whack job, but he can fix anything.
2) A bloke was found dead in the boat camber, looks like it was a whack job!
by AKACroatalin February 15, 2017
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The act of slapping your penis on a hard object in order to achieve or sustain an erection, most often followed by masturbation.
Samson: "john, i know you were wanking in there but damn that took a while brah"
John: "well it is common knowledge that you must whack the slack before you can beat the meat"
by NathanReed May 15, 2013
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When a guy beats off hanging upside down like a bat.
I can't believe you walked in on tony bat whacking
by Hayparty August 22, 2014
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a dot whack is a round sticker affixed to a direct mail piece with a special offer. Alternately, it is a printed sticker with a cast drop shadow to simulate a stickerized dot whack.
"If you want the high impact – but not the cost – of a dot-whack sticker, tests have shown printed stickers can pull as well or better than stickers printed separately and machine affixed." - August 2002 issue of Target Marketing written by Pat Freisen.
by psoup_in_san antonio February 11, 2004
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An addition to the popular car game, in which if a cadillac is seen whoever sees it first gets to slap a surrounding passenger yelling "Caddy-whack."
Maria:(sees a PT Cruiser and yells) "cruiser bruiser!" (punching her passenger.)
Jesus:(sees a station wagon with wood detailing and yells) "Woodie!" (slaps Maria back)
Maria: (sees a cadillac and clocks Jesus while yelling) "Caddy Whack BITCH!"
by Maria "one hug only" C. June 11, 2008
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I saw Steve whacking up, he used a dirty needle, his been injecting drugs now for a year
by mitch00uk April 12, 2015
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