by Bdr1974 October 2, 2018
Slipping sleeping pills into an alcoholic beverage and give that to their date and have sexual intercourse with them without them knowing it.
Bill was mad at his girlfriend hasn't had sex with him in a long time so he gave her a Bill Cosby Sleeper.
by dustylicious October 29, 2015
by Fdurl March 10, 2021
A person who’s generally happy and cheerful that is suddenly sad and upset and you’re thrown off by the presence.
“Why you over there lookin like a Sad Bill Cosby”
by King Kreations May 15, 2020