A friendly farewell amongst headbangers, similar to "have a great day" or "Live long and prosper".
It stems from the concept that if a male were to "bang" (i.e. have sexual intercourse with) someone's head, their balls would be on the person's forehead.
It stems from the concept that if a male were to "bang" (i.e. have sexual intercourse with) someone's head, their balls would be on the person's forehead.
by Bob Squash July 05, 2004
Balls on your forehead your out of marijuana.
by Staci ! May 14, 2008