Verb: When anyone turns their face abruptly towards yours with a goofy facial expression much like the ending of the Cosby show intro. Remains the same whether intentional or accidental.
He didn't know I was behind him, and when he turned around he Cosby'd me.
I Cosby'd the fuck out of Mellisa last night.
I Cosby'd the fuck out of Mellisa last night.
by Dr_Tesseract February 28, 2010
That Theresa is a real bummercloud, man. Ever since I got her pregnant she has has been raining the bummer
by Dr_tesseract February 25, 2010