To painfully hit someone in the balls by the flick of the wrist and laugh on their behalf or roll on the ground if it is done to you.
I had 3 friend who were spending the night for 2 weeks while my parents were gone. They gave me a wedgie and pulled my boxers over my head. Every time I tried to pick it out they would hold me down and would each ball tap me 100 times. (I never got the wedgie out for the entire two weeks and I counted I was ball taped a total of 15,900 times).
by Chris December 27, 2003
He was being an ass, so I ball-tapped him.
by Mark November 30, 2002
by get the fuck out of my grill February 23, 2005
My girlfriend got mad at me so she tied me down and ball tapped me until my cock and balls were bruised and slightly bleeding.
by David June 18, 2006
by The Flying Dutchman August 10, 2003