Cosby 

(Verb) The ancient art of drugging a potential partner, violating them, and then performing the impressive feat of eluding all suspicion until they violate one person too many.

Dave: I did Brenda, Jenny, and Sandra while they were asleep.
Tom: You Cosby'd them, didn't you?

Cosby by PunkBitch96 December 2, 2014

Cosby 

A drug used to sedate women, or to make them incoherent to prevent unwanted sexual acts.

1)You gave that poor girl a Cosby didn't you?
1A) Yup, and she was out like a light.

Cosby by UnknownIgnorance December 2, 2014

Cosby 

A multi colored sweater.

Stemming from the days of the Cosby show, in which the main character, Heathcliff Huxtable, played by Bill Cosby, constantly wears bright, multi colored sweaters.

Tom came into the office wearing a colorful sweater.

Mohan exclaimed "Damn Tom, nice Cosby!"

Cosby by Chips August 11, 2004

Cosby 

A sexual senario, its background pertaining to the fact that the african american comedian Bill Cosby used to advertise jello. "A Cosby" is where a girl sucks a man's dick, with jello in her mouth as well.

"Dude your girlfriend gave me a cosby yesterday"

Cosby by BloodMatrix February 20, 2005

Cosby 

The act of slipping something into an unsuspecting woman's drink and then proceed to fuck her silly.

Dat bitch Felicia just got cosby'd
I hate her so much that I'm going to Cosby her at the party tonight.

Cosby by Djjglitz December 4, 2014

Cosby 

Used online in the Blizzard game "Starcraft" when a nuke is used to kill mass units.

{after nuking 30 zerg units} "Holy shit, that was a cosby!"

Cosby by Murdock November 24, 2004

cosby 

An African American with a college degree.

"I ain't one of the Cosby's , I aint go to Hillman" Kanye West

cosby by Jay37 February 26, 2008