jack-off

To grab the hard, erect penis and rub it in a firm motion up and down until it turns red and is towards the point of ejaculation.

I haven't jacked-off in a while. So I'm gonna make up for loss time and jack-off for 18 minutes straight.

by Bentropelex November 24, 2003

jack-off

To masturbate until the point of ejaculation is reached.

Oh, oh, ho, oh my god, wait.. wait a..., oh OH SHAZAAAM!

by gabe April 22, 2005

jack-off

1) When an angry mother orders her son (named Jack) off a ride outside Tesco.
2) To masturbate.

1) "Get off the Postman Pat ride, you've been on long enough... JACK, OFF!"
2) "Dude, I am going to jack off."

by Soiled Undergarment August 15, 2003

jack-off

1. Verb. Exercising the art of masturbation
2. Verb. To create an orgasm simulating another sexual partner with the hand or other masturbating aids (e.g. fleshlight, hand, dildo)
3.Noun. An asshole, homo, or otherwise retard who's by calling them a jack-off is saying that they shouldn't have been born and was a waste of sperm which is a jack-off
4.Noun. A waste of sperm produced by the art of masturbation

Tom is a porn addict, therefore he likes to jack-off.

Tom jacks off in public for everyone to view therefore he is a jack-off.

Tom likes to jack-off so much his girlfriend has nothing to do but, jack-off.

by Tom February 28, 2006

jack-off

moving the hand up and down the penis to create an orgasm

your mom loves to jack me off

by crapman August 22, 2003

jack-off

for a male to rub his hand up and down on his dick

i just rubbed my hand up and down on my dick

by sexybitch101 November 23, 2003

jack-off

a person who was not worth being born, an asshole, a person who should have been a blow-job.

That jack-off owes me money.

by blade January 10, 2004