Super Smash Brothers Melee - Shots Fired!

A hand warmer is period of time before a match where players practice their tech skill to test the lag on the CRT (TV) they are playing on, since almost every CRT has a different amount of lag to it.

Mew2King is notorious for handwarmers before each match because of how technical he plays his characters while Hungrybox is known for mostly using Jigglypuff's back air move in match.