brown-keying

Using a laptop while taking a shit.

B: I'm takin a shit.
N: Right now?
B: Yup, I'm brown-keying.
B: Its not a dell,its a dung.

o-kei

A girl who really likes fighting type video games and enjoys historical manga and wants to bang Hwoarang into the night.

"O-kei likes banana bread."

hit to key

Critical hit. Used in the terrible translated Vietnamese version of Pokemon Crystal.

Croc SCRAAH!
HIT TO KEY!

key princess

It means I get what I want when I want it.

Wow Tiffani is such a key princess. She literally said “Fuck you bitches”

Olivia Keys

God

Person 1: whoa look at Olivia Keys
Person 2: Don't you mean 'God'?

e key

(Not to be confused with one of several keys on a piano or related instrument)

Possibly the most versatile and ubiquitous button on a computer's keyboard performs all of the following with standard Macros:

Opens inventory in MineCraft
Calls for the Medic in Team Fortress 2
Picks up an item in any Source Engine game that is not TF2
Lets you travel faster than a pathetic crawl in Oblivion
Picks up carry-able items in the Borderlands Games
Opens chat in some multiplayer games (though far less common than T, Y, U, or C)

And if you're not a gamer, It does provide one other function, it is the second most commonly typed key in normal text editing, second only to the space bar (including Word, Facebook, Twitter, and even right here on Urban Dictionary.)

I hate it when someone keeps spamming the E key in Team Fortress 2.
The puzzles in Portal and Half Life are fun as long as you have a functioning E key.
This sentence uses the E key eleven times.

key lime

A key lime is a small lime that Is normally used for key lime pie. It is also sour so be carefull.

They key lime is very sour do not eat it.