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!"
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.