The Keyboard Mash 

The greatest possible expression of frustration short of bestial snarling.

Also the only word in the English language that can legitimately include numbers and be spelt any way you please.

The Keyboard Mash in use:

"Why are you so adsfl;kjqearlf;jking stupid?!"

"389uy4r89w34yhegoiahrg9024t90"

"asdf;lkad;glaf!"

"&hy&%^78Hn"

The Keyboard Mash by Jessica Ellen October 20, 2008

The Keyboard Switch 

Plugging your keyboard into someone’s computer next to or in front of you in computer apps. When they go to type, you type something to them to freak them out.

Did you see Allie's face when I pulled the old keyboard switch? What a retard.

The Keyboard Switch by Mister D November 16, 2004

THE KEYBOARD ALPHABET 

The alphabet on a keyboard such as qwertyuiopasdfghjklzxvbnm

Kyle:Hey bro what is the keyboard alphabet?
James:Kyle are you dumb it's qwertyuiopasdfghjklzxcvbnm

THE KEYBOARD ALPHABET by loxdgamer12 October 6, 2018

sauce on the keyboard 

Something so disastrous that it cannot be reversed. A REALLY STICKY SITUATION.

Dude, I got bad news. How bad? Sauce on the keyboard bad.

sauce on the keyboard by cheru July 30, 2015

diarrhea of the keyboard 

Similar to the phrase diarrhea of the mouth, but done exclusively via computer.
A person afflicted with diarrhea of the keyboard may send frequent, very lengthy emails, post multiple very long daily updates to his or her blog or website, or clog up internet BBSs (forums (or even fora if you want to be an ass about it).

{Tony}: When you're a computer geek playing games and invading dungeons, Jethro just doesn't cut it.

{Abby}: This guy has diarrhea of the keyboard. His blog must be 1,000 pages long.

diarrhea of the keyboard by Telephony April 25, 2017

i can type without looking at the keyboard 

The first thing that comes to your mind while trying to type without looking at google.

*looks up and starts typing aggressively* "i can type without looking at the keyboard"

i can type without looking at the keyboard by Mama's Mia November 22, 2019

cat on the keyboard 

When a text or email is laced with typos and misspellings, as if a cat walked on a keyboard while a person was writing. A garbled email or text.

Sorry for the garbled email, there was a cat on the keyboard.
Her letter was rife with errors; she must have had a cat on her keyboard.
I never text and drive, not only is it really dangerous, but if i text while driving, my texts always look like there was a cat on my keyboard.

cat on the keyboard by merlin's memory April 10, 2017