Adjec.-The act of a bro pound. Hence where two bro fists collide showing mutual respect to one another in a physical manner.
Chicks cannot pound some natties it is strictly bro.
You can also add meccas of variations to the bro pound to make it more chill. For example:
An explosion of the two hands spreadly them quickly apart.
A flick of the fingers. (Not adivsed to do in public you might look gay.)
Also you can add multiples of claps and maybe a bro chest bump.
Now go pound some natties.
Bro 1: "Yeah man see you later, keep it chill and pound some natties."