do a Cosby Show 

the act of shitting.

"Hold on," Jimmy said, "I hafta go do a Cosby Show!"

do a Cosby Show by MudVaYne42282 December 20, 2003

Bill Cosby Fedora 

When a girl passes out, usually from drinking too much, then one or more males busts in said girl's hair, creating a pool of what resembles a fedora.

Guy 1: "What's that on Emily's head?"
Guy 2: "We all pitched in and got her a Bill Cosby Fedora."
Guy 1: "Thats Emily, always drinking too much and wearing Bill Cosby Fedoras."

Bill Cosby Fedora by Vanilla jello puddin pops May 26, 2019

pulled a cosby 

making strange and unusual sounds with the mouth at the most inappropriate times
or randomly talking about jello pudding

dude i was going down on this chick last night and out of nowhere she started going shebang a doopity shadangabanga zow

haha dude she pulled a cosby on you at least she didn't scream pudding when she came

actually....

pulled a cosby by dameush September 12, 2010

You just got Cosby'd 

When you get royal screwed

You call in sick and you go get some food. Your boss is sitting in the next booth he see's you. He says you just got Cosby'd

You just got Cosby'd by flying234 January 28, 2017

A Bill Cosby

The act of drugging a girl and having your way with her

I just roofied Jenny now I'm going to pull a Bill Cosby

A Bill Cosby by Thelonelyterrorist April 19, 2017

hot cosby 

The roach of a blunt. When a blunt has been almost completely smoked and only a hot blunt roach is left. Usually results in burnt fingers if no roach clip is present.

After smoking the blunt for 15 minutes all that was left was the hot cosby.

hot cosby by slfmade January 11, 2009

Reverse Cosby 

Taking drugs up the arse

"Man, I got wasted last night. Reverse Cosby'd some E and went crazy"

Reverse Cosby by Moon Balloon October 29, 2008