Noun: This term describes the look of an 'innie' belly button, most likely on a
heavy-
set person, that has worn a shirt that is a little too tight. The odd-shaped indention where the belly button is looks a bit like a womanly orifice.
"Dude, what is up with your stomach?"
"It's wash day, had to wear an old
shirt."
"You've got
belly cooter..."
"...it's wash day. Shut it!"
Also: Can be sung to Heart's "
Barracuda". Oohhhh! Belly Cooter!