The act of sticking your stragot of a friends balls in you mouth and hugging them all around
friend 1: Can i jiggle-um-balls in yo mouth
Friend 2: Hell yeah bro
jiggle balls is an original song produced by William jiggleton, where the lyrics are "jiggle balls, jiggle balls, jiggle all the balls, oh what fun it is to jiggle, jiggle all the balls, HEY!" and then repeat
"Hey chuck, did you hear jiggle balls?"
"yes."
"oh. ok"