Slapping the floor

The sounds of the disgusting, unwashed, uncivilized and shoeless feet of a cretin makes in PvP games (typically FPS) when they're moving back and forth aimlessly devoid of any thought, intention or reasoning making them difficult target because they're moving unconventionally thus making their movement unpredictable on total accident.

Guy 1: guys can we plz kill TheLegend27 hes out in the open
Guy 2: hes Slapping the floor i can't hit him!
Guy 1: oh fuck i cant hit him either