A humiliating act, usually done by your closest friend; when one is "given the goose" so to speak, one never truly recovers.
The act itself is simple: Sneak up behind an unsuspecting victim (preferably a friend, as being knocked unconscious is likely to occur otherwise), and as quickly as you can, with all of your fingers on your hand extended out together, poke them into your friend's buttcrack and run away.
A proper "Goose Goose!" is always followed by you vociferating "Goose Goose!" a split second prior to you fleeing the scene.
Luke gave Adam a Goose Goose! Luke will be severely missed.
An overweight white girl with really bad style
Ha, lookit that Goose Goose with the nasty-ass Punky Brewster haircut!
A 9 milimeter handgun used for blastin yo enemeez.
I blasted that nigga wit my spankin goose goose.
Shea's got a goose goose!!!!