Dropping the Cosby Kids Off at the Beach 

To take a shit.

"Damn, after eating all this food from Arby's, I really have to drop the Cosby kids off at the beach!"

Dropping the Cosby Kids Off at the Beach by IJM October 12, 2003

submarining with the cosby kids 

Submarining with the cosby kids means diving down as deep as you can, dropping some logs, and then racing them back to the surface.

Not so cool in a public pool.

Serena was totally impressed with how deep Larry could dive, until the dooks started surfacing, and she saw that he'd been submarining with the cosby kids.

She didn't leave a note.

submarining with the cosby kids by scodder June 21, 2010

pick up the Cosby kids from the pool

to scoop your shit out of the toilet, by hand or with a fishnet.

Jim had forgotten his doctor wanted a stool sample, so right after he finished dropping off the Cosby kids at the pool he immediately had to pick up the Cosby kids from the pool.

pick up the Cosby kids from the pool by ducksRpeople2 September 11, 2011

drop off the slaughtered Cosby kids at the pool 

to go diarrhea; or to take an otherwise messy or explosive shit.

After all them nuclear hot wings Joe had to go drop off the slaughtered Cosby kids at the pool.

drop off the slaughtered Cosby kids at the pool by ducksRpeople2 September 13, 2011