Maasai jumping-jack

Named after the Maasai jumping dance performed by the maassai tribe. One's penis is tucked between the thighs and as the person jumps up and down a 'handless wank' is achieved. Usually carried out in frustration after hand functionality is comprimised for extended periods. Quite difficult at first but can be perfected with practice.

The first Maasai jumping-jack was performed by Charley Boorman while filming the long way round through Africa. Charlie was whining about his bitchy little limp wrists one night and Ewan denied him a dutch rudder. So, inspired by the Maasai people he'd seen that day, the Maasai jumping-jack was born.

After that motorbike crash where he broke both his wrists, Paul became a pro at the Maasai jumping-jack.

"If Liam didn't show me how to Maasai jumping-jack myself after I burned my hands, I don't think I could've coped."

by What would Charlie do? November 9, 2012

Jack in the Box Boyfriend

One of the cruelest turn of events that could happen to any man. Where a female that one has been talking to for several months out of nowhere mentions her "boyfriend" that for some reason had never existed until that moment

Doug: Hey did you hook up with Courtney last night?
Cecil: Nawh! She brought up her Jack in the Box Boyfriend while we were watching a movie...I was shitty!
Doug: I had a bad feeling that was going to happen...damn!

by Trent McFarlane January 12, 2013

jacking my balls

Not doing anything, wasting time, lollygagging, being abnormaly lazy

Rob is over there working hard and im just over here jacking my balls.

by Stphano April 22, 2011

jack-off Jimmy

a nickname for someone who masturbates all the time.

I caught James in the bathroom again, beating his meat as usual. Someone needs to tell jack-off Jimmy to find himself a bitch.

by Nick D May 1, 2003

Jack Off Sense

The heightened sense you develop for noticing when someone is going to come in your room before you do.

Nelly's jack off sense warned him to hide the porn and lotion at a moments notice.

by Peter Urban May 4, 2006

half jacked-off

a synonym for half-assed, half baked, et al. Usually used to render scorn on a famous person/celebrity who, for all their glitter, charisma and talent really puts forth a miserable effort in said situation.

Ben Affleck's cinematic efforts of late have been generally of the half jacked-off variety.

by Virgin Suicides June 16, 2017

Jack Dylan grazer

A 14 yr old boy who is extremely attractive and adorable, fun to be around and as soon as u look at him your like In love

I just made an edit and it got 50069 likes cause it was about jack Dylan grazer

by Fins.baby.boy ~ follow insta December 4, 2017