Ball-Tracker 

A particularly useless person whose attempts to contribute in a group effort often hinders or doesn't contribute to the success of the group; ball-trackers fake work to get credit or to avoid of the consequences of doing nothing; originated as a pinball term when there are three people who all want to participate (one right flipper, one left, one ball-tracker who follows the ball with his finger)

"I'll be right flipper, James you're left, and Jacob, if you really wanna play you can be ball-tracker."

Ball-Tracker by gypsy disc March 23, 2016

trucker ball 

When your nut bag is stuck to the side of your leg. Generally during a road trip.

I had to get off the freeway cause of a gnarly case of trucker ball.

trucker ball by marble_player July 4, 2017