The combination of an unsuited Jack and Two as starting cards in Texas Hold 'em.
Wow, you just dealt me Jack Shit.. Literally..
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This term is used to describe someone who thinks they know everything yet are often wrong. They will argue and lie to be right. Often get louder when challenged. It can also be said they have shit for brains. Often offer unnecessary information just to have something to say.
Said to someone who is the offender."You know Jack shit about everything shit for brains".
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Poker term:
1) Traditionally refers to drawing Jack-Deuce as your starting hand, ie. "Jack-Shit"; a bad hand. Although may sometimes be extended to refer to a combination of a Jack with any low value card 2-7, typically.
2) Jack-Shit Poker - A variation on the familiar Seven-Deuce Hold'em. A pre-arranged additional reward is owed by one's opponents if he wins a hand with Jack-Deuce as his hole cards.
Player X: You had a straight?
Player Y: Nah, I had Jack Shit!
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Term used to describe the act of spanking the monkey while taking a dump.
I got really bored yesterday, so I did a Jack Shit in the bathroom
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When you is Jack and you pour hydrofluoric acid down your toilet to fix a clog and shit comes spraying back up in your face giving you acid burns that need medical attention.
Bob didnβt know jack shit could happen until he woke up the next day in the hospital smelling like burnt crap.
Not worth the trouble or the value
That car's not worth jack shit
Absolutely Nothing. See Square Root of Fuck-All , Square Root of Sweet Fuck All and fuck-all squared.
"He knows absolutely the square root of jack shit about food and cooking."
- James May, Former presenter of Top Gear UK, on Richard Hammond.
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