Jack-a-jack 

The onomatopoeic word describing the sound made when male masturabation occurs.

"Dave was going at it so hard last night all I could heard was jack-a-jack-a-jack-a-jack through the wall"

Jack-a-jack by Poon January 23, 2005

jack-a-ninny 

1. Slang term, an idiot, nincompoop, lacking common sense. 2. An indolent person. 3. A cross between nincompoop and jackass.

1. Get back to work you jack-a-ninny!
2. Al is a frickin jack-a-ninny.

jack-a-ninny by Hoyt of The Ledge May 26, 2006

A jack dane 

When you projectile poo all over the body of somebody's mum at their funeral

Person 1: did you hear what happend last week?
Person 2: no what happend
Person 1:that lad over there did a jack dane at Henry's mums funeral lmao

A jack dane by Gay lord69 November 27, 2020

doing a jack

the act of wanking on skype to his female and male friends

the act of living in a freezer

boy= "im gonna have a wank"
girl= "please dont do a jack"

boy= "how far have you gone with jack ?"
girlfriend= "practically no where, hes doing a jack again"

doing a jack by izamberie September 24, 2015

pulled a jack warner

To pull a Jack Warner is to pull out of something at the last minute.

You: So what time are we meeting him?
Me: Ahh we're not anymore he pulled a Jack Warner 10 minutes ago.

pulled a jack warner by Spaghetti1245 July 17, 2009

hit a jack 

to Smoke a ciggarette

Yo, you wanna go hit a jack?

hit a jack by David Russell September 12, 2005

Pulling a Jack Bauer 

Dying and coming back to life, or pretending to die and coming back to life as Jack Bauer from 24 has done twice

-So James have you read Romeo and Juliet yet?
- Yeah Juliet pulls a Jack Bauer

Boy- That guy was drowning!
Girl- No dont worry, he was just pulling a Jack Bauer

Pulling a Jack Bauer by Ana M. November 7, 2007