when a chick or a guy nibbles on the balls while giving head.
(guy1)-dude last night when heather was givin me head she started munchin on my nuts!
Ex. munchin on some nuts
a girl is on the bottom and there is a guy fucking her and then there is a guy fucking him up the ass and another guy fuckng him up the ass on so on and so fourth.
cindy,john,bob,joe,and jared just did a sex train