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1. To be high on something.
2. Not yourself as in a little crazy or hyper, more than usual.
3. Not logical.
He was Geed-up at the party the other night.
Man don't talk to her right now because she is all geed-up.
geed up by Crayon May 27, 2004
(adv.) A state of being high on GHB or GBL, usually characterized by one or more of the following: euphoria, friendliness, confusion, loss of judgement, loss of inhibition.
Ann: You geed up?
Sam: Oh yeah, I'm geed up all right.
Ann: Let's get naked!
1. An exclaimation of failure or ineptitude.

Origin: Garving Feuerhelm really fucks up a lot.
"Man you really geed up that test, you should have studied.....Gavin"
geed up by ATO January 26, 2005

gee'd up 

If you are in a relationship and you decide to cheat and the person you cheating with, starts to question you like you belong to them~when they know you belong to someone else... you would tell them: Get gee'd up!

In other words: Get on your shit , you know what it is!
gee'd up by Illicit8 February 16, 2010