(n) when your nuts are briefly showing, like cleavage for boobs
He was going commando at dinner so there was some major nuttage.
by trhunner June 11, 2009
1 more definition
it's like cleavage, but with your sack. Good/bad nuttage may determine whether or not one will have a good night in bed.
"He had bad nuttage, so I decided not to go down on him".
by Panda Rectum June 11, 2009