A mixture of spit and spunk, received, mixed in the mouth, and usually deposited into the males belly button after a good 'noshing'.
Wilbur: How'd you get on with that chick last night?
Tarquin: Man, bitch damn dumped the nosh froth all over my gut, most of it in my fucking belly button.
Wilbur: Shit, that's naaasty.
Tarquin: Want her number?
Wilbur: Sure, nudge me.