keyboard salsa 

That grey/black (depending on how dirty you are) gunk on your keyboard after prolonged use.

May also accumulate on mice.

Man I hate my supervisor so much.... I'm gonna give him some keyboard salsa in his coffee

keyboard salsa by Steve Lewis February 1, 2004

Keyboard crusader 

A person who spends most of there time preaching religious words on the internet. Much like a keyboard warrior, but fight for god on the internet.

GodLov3sYou: There is NO hate in God. God is LOVE.

Loldogzx: STFU and GTFO you keyboard crusader

Keyboard crusader by O-DOGGIES July 18, 2012

Keyboard Warrior 

A phrase often used on social media by Bullies who can't sustain s conversation or face facts , This manifests their suppressed desires to viliolently / sexually assault or even kill you .

A full and boring flag waver couldn't back up anything he waffled about in twitter , He then called me a keyboard warrior , you know the type that hide behind mates and the law when defend yourself from the wooses

Keyboard Warrior by Artiethedog August 11, 2021

keyboard cheese 

the icky black material that always gets stuck on my mouse

what's 'keyboard cheese' made of anyway?

keyboard cheese by Foozball January 25, 2008

Keyboard Cowboy 

If the internet was the old west, than the Keyboard Cowboy is it's, well. . . Cowboy.

Keyboard Cowboys are the people you see bring lawlessness to the Internet, Cowboys behind their computer screen on tapping away at the Keyboards. Picking on people, submitting crazy definitions to UD. The bulk of Keyboard Cowboys are manifested in 4chan like an old smelly saloon for them to meet and discuss their antics. They are trolls, post gore, and taunt the shit out of people.

Also hackers
Pirates
And the people behind Encyclopedia Dramatica.

I support keyboard cowboys

Dave is a hacker, steals, breaks the law, and does it all of the Internet. Dave is a Keyboard Cowboy

Keyboard Cowboy by RolphSemensDickOvensUWIDI October 15, 2010

Keyboard Symphony 

The noise of loads of people in the same room typing on computers

Keith: I Couldn't hear anything because of that keyboard symphony

Keyboard Symphony by The Muffin Bear November 7, 2010

keyboard bangs 

The explosive sound when a programmer gets an Eureka moment and hits real hard on the Enter key to show his pride.

Schwan was doing his keyboard banging in the office today. I am happy for his accomplishments, but his keyboard bangs are quite annoying.

keyboard bangs by Savant Of Christ November 28, 2014