A cocktail made so strong that it could lead to future rape allegations against the server. The original drink can be made from any base ingredient such as coffee or juice but will usually be laced with barbiturates, Quaaludes or other knock-out tonics from back in the day. Also see Mickey, rohypnol and Date Rape.
Person 1 (sipping cocktail) "Dude, I asked for a simple Gin and Tonic, not a Bill Cosby!"
by Funny Man Andy December 12, 2014
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v: To slip a roofie into someone's Jell-O pudding and then proceed to rape them once they become unconscious.
Danny pulled a Bill Cosby on Evelyn, he should go to jail for what he did!
by Hamzawesome1 January 10, 2015
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v;
1. See date rape.
2. To slip a drug (i.e. GHB, roofies, ketamine) into an alcoholic drink, give that drink to a female within the ages of 15-35, then proceed to rape said woman after they become unconscious.

n;
3. An individual who commits the aforementioned acts.
1. She needs to report that guy for Bill Cosby-ing her!

2. I saw Alex try to slip a roofie in my Jello pudding. He is a total Bill Cosby.
by Hamzawesome1 January 08, 2015
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When you get taken out for drinks and get drugged and raped or you do it to someone.
Jayden- "man I finna bill cosbyed my girlfriend last night"
John- "that's pretty cool man"
by CheezStick July 23, 2018
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taking your time to fall in love before hooking up with someone without using roofies
jethro: dood spike lindas drink and give her the hot coaby while shes asleep tonight
bill: i think ill get to know linda tonight and give her the old slow cosby
by mike hunt fuck September 26, 2015
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A metaphor for rape an unknown student from the South Park Elementary school established.

Some think it's a crime to have sex with someone who doesn't want it. But when the canadian Donald Trump is ruining the world, a hot Cosby is our last hope.
"I was supposed to give you a hot Cosby. But now i feel like giving you a slow Cosby instead."

"In Canada we call a slow Cosby love."
by TimRoden September 26, 2015
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to blackout drug, then violate drugged person(s)
Andrew is going to bill cosby the shit out of Maria after canapés are seved.
by T Phat November 04, 2015
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