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

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

You Don't Know Jack 

Colloquial Language for: You know nothing.

A: Hey, dude! 34 that on Photoshop.
B: 34?
A: Yeah, make that steamy.
B: Steamy?
A: Dude, you don't know jack about imaging, don't you?

You Don't Know Jack by Deuces High March 26, 2011

you dont know jack shit 

you dont know jack shit a word meaning you know nothing or are too stupid to figure it out

dude whats an electric car

man you dont know jack shit you are too stupid to know what an electric car is unless you get ran over by one

you dont know jack shit by littlejimmie January 24, 2019

you don't know jack 

An extremely popular video trivia game where the categories are outrageous, the questions are hilarious and the host makes fun of you when you're wrong! Everyone I know goes crazy for these games.

Have you played today's Daily DisOrDat game on the You Don't Know Jack Website?
It's called:
Spank Me! Spank Me Per the Geneva Convention!
Me DisOrDat you long time.
And it tests your knowledge of two very important topics!

you don't know jack by Marcy33 December 27, 2006

do you know jack? 

yes

no, do you know jack?

do you know jack? by proprioception October 18, 2010

You Dont Know Jack 

This a game that is played online. It gives you 4 letters, for example PLEP. With those four letters you must make it into a witty remark, each word strating with those letters. PLEP could become "people Love Eating Pie" the quickest answer gets 1 vote. Once it is submitted other players vote on it and the one with the most votes wins ( you cant vote for urself)

Cam is good at playing "You Dont Know Jack" he always get a vote, he thinks quick.

You Dont Know Jack by pink_elephant January 12, 2007