Jack-off 

Noun: A person, either male or female, who wastes a car salesperson's time when that salesperson could be doing something either more constructive or entertaining. Used as the strongest epithet for a non-buyer in the retail automotive industry.

"Would you believe that fucking Jack-off had Johnny test drive him in three cars then left without so much as a writeup!!" Also, "Beat it, you Jack-off!" Frequently shortened to "Jack", such as "What a Jack!"

Jack-off by daxwes September 19, 2009

jack-off 

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

your mom loves to jack me off

jack-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

jack-off by sexybitch101 November 22, 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.

jack-off by blade January 9, 2004

jack-off 

the motion in which the male organ is erected and played with by the male or female

sabrina was jacking me off before we had wild sex

jack-off by the great and only mighty megan June 15, 2003

jack-off 

When A Guy Holds His Dick And Rubs His Hand Up And Down Getting Faster Until It Feels Good And He Sperms.

Sence Vishal is so fat and ugly, and he doesnt get any girls. He jack-off in the corner

jack-off by VishalIsGay June 25, 2007

jack-off 

when someone playz with themself for guyz rubbing there hand up and down their cock a gurl might finger her self

he felt lonely so he began to jack-off

jack-off by -=13=- July 3, 2003