A gay man that likes to hold balls in his hands and swing them around. Usually with more than one other guy.
"Man! Gerald is such a ball juggler! I walked into his room and he had like 6 balls in his hand, and all the 3 guys were enjoying it!"
1. Some one, (man or woman) who utilizes their tounge to "juggle" the nuts of the scrodom sack. Some one Who is good at it should be able to get a good rotation of the nuts for maximum stimulus.
"Damn girl you're a good ball juggler!"