hitting yourself in the nuts with your own hard on.
Tom, " Bro i just got a case of Lumber nuts."
Brian, " that sucks man."
The act of using your own boner to bag tag someone else.
Bro, Tito has been acting like a clown all day, I want to get him to shut the fuck up.
I'll tell ya what you should do fella, you gotta Lumber Nuts that fool.
Shit, that's kinda gay, but it's a great idea.