Bingo balls 

while lying on you back, pinch the scrotum between the testicles. Pull up and down a few times thus creating the effect of bingo balls bouncing in a bingo air machine.

Jack could not get off ,so Jill gave him Bingo Balls while giving oral sex to help Jack cum.

Bingo balls by Tommy boy 70 April 19, 2018

bingo balls 

when you pinch the scrotum between the testicles and pull them up and down fast. Thus creating a bingo balls bouncing in a air bingo device effect.

Jill was giving me bingo balls last night.

bingo balls by Tommy boy 70 October 26, 2017

Ballsack Bingo

In the scenario of a male orgy, 'Ballsack Bingo' is used to define the act of writing numbers on the ballsacks of other participants of the orgy, then picking one out at random, subsequently engaging in such acts as hearty reacharounds!

Yes Mum, I had a great time last night with the guys! We played Ballsack Bingo until dawn!

Ballsack Bingo by HandFlapper403 April 28, 2011