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Battery Jack 

The act of removing the batteries of a lesser needed electronic device power a more urgent one
Gamer 1: dude my controller is dead, and i don't have any batteries.
Gamer 2: then go battery jack your dvd remote's
Battery Jack by Z227933 January 19, 2010

cousin jack 

In the upper peninsula of Michigan this has been used to designate a male person, or descendant of such, who has immigrated from Cornwall, England. The feminine form is 'cousin jenny.' These terms are often capitalized.
The famous pasty was brought to the upper peninsula of Michigan by the cousin jacks.
cousin jack by Silver dawn August 28, 2013

camel jack 

When someone is just being completely stupid or "blonde" and you just have no other words for them.
Azalea ran into the wall like connor, and i called her a fucking camel jack.
camel jack by ryanbks8000x April 29, 2014

know jack 

Australian slang - means to understand, to know.
he doesn't know jack about rugby - he knows nothing about rugby
know jack by An.kim September 25, 2014

flap jack vagina 

When a woman's pussy lips hang out like pancakes.
Man, I was gonna fuck Susie last night, thought I was gonna need syrup when I saw that flap jack vagina.
flap jack vagina by ex_lax70 September 22, 2016

Urinal jack 

The act of masturbating or rubbing/cranking one out at the urinal.
It was a busy day at work, luckily I had enough time for a ole urinal jack!!!
Urinal jack by Steve and doug October 2, 2019