2 definitions by MarioCanDoAnything

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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L.I.B. stands for "laugh in brain". People dont acctually LOL "laugh out loud". They laugh in there brain. So people have to stop LOL'ing and do something more true. LIB
Tom: Dude I Just Totally SLipped And Fell On Rocks.
Jerry: L.I.B.
Tom: Ya, It Sucks ass
Jerry: L.I.B. Dude Your A Moron.
by MarioCanDoAnything January 22, 2010
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