word used to describe women with well beyond average intelligence and looks that will make any man's head turn. All the guys want to be with them, and all the girls want to be them. CSI girls are the definition of perfection. CSI's have it all - beauty, brains, wealth, love, and happiness.
Kelly: When I grow up, I want to be a cop.
Mike: Good thinking, because you could never be a CSI.
by grissom123 February 03, 2010
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an acronym for a group called Coffee Society Internationale.

a supposedly 'coffee' drinking group that attempts to create the illusion of sophistication and an excuse for a good flirt. Also where half of the members don't drink coffee.

Often gets nicknamed Gay-S-I by peers & is looked down upon in regular society.
'CSI is on today you gonna come?'

'I thought that group was dead...'
by ACIM January 29, 2009
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CSI is an acronym.

It stands for:


It's generally used for those people who know way too much about science, and tend to talk about creepy things concerning it.

It is also used when referring to a government group that goes under the same name, but that's not used very often except when referring to the television programs.
"Man, what a CSI - I think we have a secret pedobear on the loose. Somebody phone the police..."
by Genevieve Am I June 22, 2011
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