Jack Off

To masturbate.
Can also be used to unexpectedly shock people.
Grandma caught her 15 year-old grandson jacking off (masturbating) and she passed out, had a massive heart attack and died.
by chikillanto August 23, 2003
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Boner Off

When guys compete to see who gets to fuck a broad, the guy with the longest and fattest dick wins
MOCO always wins the Boner Off!
by MOCO & P-Phat February 11, 2007
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off the hook

Off the hook is actually a modernization of a series of slang words. Closely related to off the chain, there refering to something being so "fresh" and "new" that its literally right off the store shelf. (started in reference to clothes, the hangar being the hook)
Them shoes are off the hook dog.
by DK Kaytan October 06, 2004
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get it off

1. to have an orgasm

2. to copulate

3. to masturbate
He is in his room getting it off.
by Light Joker August 24, 2005
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fuck-off

This is distinct from the imperative "Fuck off!" You try to say it as one word with the emphasis on the "fuck". This word has a couple of uses in Australia:

1. To qualify an adjective, if something is REALLY big or REALLY brightly coloured, for example, then you slide "fuck-off" in somewhere. This is also used in the UK and is seen in the movie Lock Stock and Two Smoking Barrels: "Also, I think knives are a good idea. Big, fuck-off shiny ones."

2. Another term for insect repellent.
1. My sister's new car is bright fuck-off yellow.

2. These fucking flies are shitting me. Anyone got some fuck-off?
by Choda Boy 57 September 08, 2006
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jerking off

something that you don't do at someone else's house
OMG did u hear that kevin was jerking off at brian's house??!!!
by not eton March 28, 2007
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jilling off

Masturbate if one is a woman, the female form of jacking off
by Anonymous April 10, 2003
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