foster

A incredibly hot, damn fine piece of ass.

"man that leya is a total foster!"

"did you see that foster, Id love to hit that."

by L.E April 16, 2007

Foster's

Short for Foster's Home for Imaginary friends. When kids get too old they don't need imaginary friends anymore so they stay at Foster's until they get adopted by another child (presumably with no imagination of their own).
Foster herself is a little old lady who still has her imaginary bunny friend.

Mr. Unicorn, we regret to inform you little Stacy is dead, so you'll be staying at Foster's from now on.

by unicorny July 30, 2006

fostered

When a girl pukes while sucking a guys dick.

That girl totally just fostered that guy.

by theman17 November 11, 2010

foster

In regard to video games, to shoot an opposing player in either the crotch or ass. Also referred to as "Buttering" as in the episode of South Park where Butters shoots everyone in the crotch.

Guy 1: "Dude, you totally just shot him in the dick!"

Guy 2: "FOSTERED!"

by Arkem3 June 28, 2011

foster

a word for someone who has more then one STD.

I know i have a foster on my cock after hooking up with that slam pig the other night.

by Barry Gorman October 12, 2006

foster

to step on, usu. in a fight

That guy just fostered the other guy in the nuts.

by Excello April 13, 2008

foster

no parents / orphan

foster: people with no parents

parents dont want the kids

kids live with their grandparents

by donthavetoknowme1 June 15, 2011