1. when you dont know something.
2. when you dont feel like giving a real answer.
John- where you going lisa?
Lisa- Cant say what you dont know?
by Zack E August 5, 2006
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A term that is used when one is making zero sense, and you must prove the point to them that you cannot understand them.
insert person rambling nonsense
L Retard, What Are You Saying? I Can’t Understand You, You Slimy, Dripping Garbage Bag.
by pussypopstar August 2, 2022
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A phrase normally used by Chavs to indicate he wants to fight the person he says it too (usally the person is involuntarily put into the situation).
Chav sees non Chav person passing him (them) at night.
"What did you say about my mum? (What you say about my mum?)
"Umm nothing..?"
*Smack*
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You say this when you ask a Question and someone Answers with "I Don't Know". Then you say "Well, If You Did Know What Would You Say?" Then you have a great feeling in your stomach and the other person feels like a stupido. Haha lib.
Tom: Yo, What Time Is It?
Jerry: I Don't Know
Tom: Well, If You Did Know What Would You Say?
Jerry: Dude...
Tom: Well, You Should Know!
Jerry: Ok, I'll Go Check
Tom: Better!
Jerry: Haha.
Tim: Haha.
by MarioCanDoAnything January 22, 2010
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A rhetorical question / sarcastic response to someone who talks rudely or is speaking out of turn.
If you're speaking disrespectfully to someone and they go "What you say? huh? what you say?" (It's a warning that you should check your tone.)
by Dosso90 September 13, 2021
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