A Fullbacker is one who pushes others out of the way on a crowded dance floor at a sludgy college bar to reach the painted pole or otherwise significant ornament at the center of the dance floor.
The guy just knocked over six people! Now we can dance near this gold pole. He's a great fullbacker.
lead blocker; the ugliest girl in a group of girls at the club. It's her job to make sure no one in the club gets any play from the girls in the group.