look up any word, like plopping:
 
1.
randomly hitting your keyboard to express an emotion. Works for excitement, anger, fangrilyness, and a whole bunch of other things, including adjectives.
that was askldjghalsdkgj amazing

nice keysmash dude.
by ~*~~*~~~*~~*~* October 02, 2007
 
2.
Key Smashing is an action done when someone is experiencing extreme emotion-- generally happiness or frustration-- by slamming hands down on the keyboard and hitting random letters/ keys. It can be in all Caps, lowercase or a mixture of both.

also relates to a asdfasdfasdf
a typical, happy, key smash: " I just got a new puppy! ASDXHFCGJMHJDRERZFD! SOO CUTE!!!!"
by katzpyjama March 16, 2010