fist bump, n.Definitions

A Fist bump is the Mormon version of first base

A Fist bump is cheers without beers.

A Fist bump is a really thick hi five.

A Fist bump is a high zero

The Fist bump is more hygienic than the handshake.

The Fist bump is superior than the handshake insofar as you don't have to use the same hand to make it work.