Don't know nothing, a person's iq about someone else is 0.
The assistant front end manager, don't know crap about me, she is just another idiot who wants to get me in trouble.
by Saints September 22, 2003
Top Definition
Nothing, zero, zilch, nada, shit all. Possibly a short, fat man.
"I came out of that deal with jack squat."
"Here comes that prick, Jack Squat."
by chico del nacho September 19, 2003
absolutely nothing
I didn't win jack squat when i went to Las Vegas last weekend.
by Natalie September 20, 2003
Another way to say Jack Shit.
there are users on this website who do not know jack squat about writing a good definition.
by Light Joker May 21, 2004
not anything, absolutely nothing
I know jack squat about thermodynamics.
by piewire September 19, 2003
Nothing. Identical in meaning to jack shit - it's just an equivalent for people who are scared of profanities.
Your car's worth jack squat.
by super ultra hyper bishi bashi champ September 21, 2003
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