1 definition by Karisma =]]

Derived from the phrase "deet dee dee" meaning retarded or slow.
Can be used as noun:
e.g. Sandra: I LEFT MY LITTLE BROTHER IN THE POOL BY HIMSELF!
Sasha: What a deet.
Can be used as an adjective:
Diamond: Why I open the door with this key?!
Samantha: It's the wrong key.
Diamond: Ooooh
Samantha: You're so deet.
by Karisma =]] January 13, 2009
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