When you have an erect peen. Run up on your unsuspecting S/O, pull your pants down and yell "RYUUJIN NO KEN WO KURAE" while moving hips back and forth. Repeatedly hitting them with your peen from multiple angles.
by Sinister August 14, 2017
Somebody with an extremply large peen. Whenever he gets erected, he gets a black eye. If he were to get a post boner, it may result into death.
by Bixon2004 June 24, 2009