An alcohol beverage prepared with the intent of sexually/physically stimulating the person you intend to take home. The purpose of this beverage is to increase/guarantee one’s chance of successful intercorse. The beverage may contain a substance to enhance or/and cancel the memory of sexual interaction.
I think someone gave me a Cosby cocktail last night because pissing like I had sex all night!
by Imthejoker December 5, 2018
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COSBY COCKTAIL - Noun

This is when you stuff someone's toilet with their hand towel, then you mix in a lot of Jello powder and poo. This is the same thing as a Jello Bowl except you add poo in this one. I would imagine you would want to add the poo torwards the end of the process.
He had some nasty mudbutt when he used my toilet and didn't clean it up so the next I was at his place I gave him a Cosby Cocktail.
by lowteck May 23, 2006
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This is a modern variation on a mind eraser. This shot calls for 1oz Crown Royal Apple and 1oz Kahlua. The two liquors are poured over ice in a 14-16 oz glass and then topped of to the top of the glass with soda water. The shot is served with a straw and must be chugged through the straw.

Drink credit: Lou Patton, PCB FL
The bartender served us his signature Cosby Cocktail shot and everyone of us blacked out.
by Lou patton March 25, 2018
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The act of coitus between two men, where the "fucker" puts a sedative tablet in the head of his penis, to insert into the "fuckees" anus, where it will become active. Once inserted, the "fuckee" will now have a tail, made of cock... a, cocktail and "cosby" cocktail, due to the sedative.
"Ah yeah, my rings stull hurtin from when Steve gave me that cosby cocktail last night".

"Ah yeah Dave, how did you like that cosby cocktail"
by Bill Nye The Cosby Guy October 31, 2021
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