A popular dance similar to the fist pump
, in this case below the belt. The dance involves hitting your fist back and forth at a midget's ass height(so very low) on the beat of the song playing. While doing the dance, you have to imagine an invisible midget bending over in front of you. And that's where you hit your fist.
It is also possible to do the dance to a random person passing, a random person dancing close to you on the dance floor or a particular person you fancy(in this case they do not have to be a midget necessarily).