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stimulating your penis with your hand to cause orgasm and ejaculation. Male masturbation.
Brian had the blue balls so bad he had to jack off as soon as he got home.
by Marty October 19, 2003
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2
reason my right arm is much bigger than my left
Kid to anothr kid: holy shit! look at his arm
another kid: omfg
(they sees his left arm)
kid: ohhhh.....he probbly jack off
anothr kid: lets add that to our arm workout bro
by jjtheblack October 01, 2011
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3
When A Guy Holds His Dick And Rubs His Hand Up And Down Getting Faster Until It Feels Good And He Sperms.
My Friend Doesn't Get Any Pussy So He Likes To Jack-Off.
by *JeNnA* May 04, 2004
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6
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 22, 2003
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7
To masturbate; the stimulation of a male's penis until orgasm is achieved and ejaculation occurs.
Jill didn't want to have sex right now, so Jack decided to jack off.
by Phillip Knowles January 18, 2006
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