Jack

An archaic term for a everyman or unidentified person

Did you see that spring heeled jack jumping across thy rooftops.

by FutureElliotto December 28, 2025

Jack

The horniest kid ever. He just goons all day no stop. He is the definition of a gooner

Look at that Jack in bed

by jsjdjshjs January 7, 2026

Royal Jack Off

In the game of rummy it is a rule to lay three of a kind or more on the table. When 3 Jacks are played this is called a Royal Jack Off.

Jerry:look at this play
Kyle:looks like you played a Royal Jack Off

by Jerry M. March 12, 2007

fridge-jack

To take more than your fair share of fridge space (usually common in shared households). The offender either buys more food than they can store or spreads out their food over the whole fridge in such a way that you have to remove their food before you can get to your own.

Cliff: What do ya think of the new guy then?

Matt: He's okay but I can never get to my food.

Cliff: What, you mean he's a fridge-jacker?

Matt: Yeah.

by sixxon December 30, 2008

Cracking Jack

The act of jerking off (typically a man), especially to the point of orgasm.

Originates from the term "jacking off" as well as the similarity of the "cracking" sound from performing it and the opening of usually alcoholic beverage bottles.
It is also a popular perversion of "cracker jack", the brand of caramel corn.

Roommate: "You two were so loud last night! I heard you cracking jack so loud I couldn't get to sleep!"

"Yo, she was cracking jack so hard i almost passed out!"

by J. Gam January 18, 2008

buck jack

A word the can be used to describe any event.

" Girl, I got this weave in today and it fell out, I was like this shit is buck jack!"

by Michael LaTour April 20, 2008

el Jack

To steal creative works from others and claim them as your own, for the sole purpose of convincing young impressionable models in Derbyshire to possibly show you their naughty bits.

"I el Jacked this guys portfolio and now I have a shoot with that hot model."

by el Mayhem January 22, 2009