A pseudonym for testicles, as first coined by Adventure Time character Ice King.
"Look fellas, over there! Someone got hit in the boingloings. The boingloings. Hit in the boingloings."
โดย UberNinjaNerd 22 กรกฎาคม 2013
Slaping a girl with your sack as fast as you can. Up and down. Side to side.
I was pissed at at my girl friend so, I boing loinged her.
โดย The Retard 07 พฤษภาคม 2012