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10.
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".
by Lordsmith October 26, 2010
13 6
 
1.
Jack is the only son of Awe Schitt and O. Schitt. Awe Schitt, the fertilizer magnate, married O. Schitt, the owner of
Knee-deep Schitt, Inc.
Jack Schitt married Noe Schitt and they had 6 children: Holie Schitt, The twins; Deep Schitt and Dip Schitt, Fulla Schitt, Giva Schitt and Bull Schitt.
Jack and Noe divorced. Noe later married Mr. Sherlock and because her kids were living with them, she wanted to keep her previous name. She was known as Noe Schitt-Sherlock.
Dip Schitt married Loda Schitt and they had Chicken Schitt. Fulla Schitt and Giva Schitt married the Happens
brothers in a dual ceremony.
The Schitt-Happens children are Dawg, Byrd and Horse. Bull Schitt left home to tour the world. He recently returned with his new bride, Pisa Schitt.

Now, when someone say's you don't know Jack Schitt, you can correct them.
- U don't know Jack Schitt
- Yes i do, he's Awe and O. Schitt's son
by Primitiva May 03, 2004
2454 392
 
2.
Nothing, or something equivalent to nothing. Jack shit has the remarkable property that its absence and presence are identical. Typically used with or without a negative to describe a total lack of knowledge, value, or significance. Its use carries a strong negative connotation which can express frustration, disdain, ignorance, or other negative qualities.
I don't know jack shit about that. / I know jack shit about that.
It's worth jack shit. / It isn't worth jack shit.
I didn't get jack shit. / I got jack shit.
by cazort June 01, 2005
729 87
 
3.
1) A term most commonly used for when people describe that they don't know, or have not done anything.

2) Probably the name of some guy somewhere, who i'd -really- like to meet.
Bob: "Bill, what do you know about egg products?"

Bill: "Heh, Jack shit, Bob."
by Meik April 02, 2003
301 144
 
4.
nothing
i ant doin jackshit dude
by Knighty July 12, 2003
208 57
 
5.
A term used to describe a lack of anything.
I ain't got jack shit to do. You don't have jack shit. I don't owe you jack shit!
by Carter SN October 01, 2005
195 77
 
6.
An American gentleman, with whom certain people are unfamiliar.
You don't know Jack Shit.

Perhaps not, but I'm actually on rather good terms with his wealthier cousin Theodore.
by Pipe Downn January 21, 2009
116 38
 
7.
nothing,ziltch,zero,empty,contains absolutely nothing.
Asked if he had won any money on lotto, sam replied,"nah got jack shit" There was jack shit left in the fridge.
by timothy mark kluwen April 16, 2007
75 23