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."
af UberNinjaNerd 22. juli 2013
1 more definition
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.
af The Retard 7. maj 2012