While a man is receiving oral sex, it is the act of bruising a partner's chin as a result of violent, aggressive oral sex, whereby the testicles slap against the chin with such force, causing the bruising or tenderness of the partner's chin.
His ballbag slapping hard against his girlfriend's chin, Frank gave Sally hammerballs.
by Beer Whore September 27, 2010
Violent eastern european team based game
I'll Kick your ass at hammerball bitch
by Contract_Killer247 May 20, 2004