1) A general exclamation upon happenstance viewing of an enormous, lippy vagina.

2) What one would say upon viewing surprise pictures of your friend's girlfriend's puffy red snapper.
Wow, Sam. These are great pics of your vacation! I like this one of your girlfriend on the beach...oh my...gaGOOSH!!
by Gagoosh March 02, 2005
Get the mug
Get a Gagoosh mug for your buddy Callisto.