deprecat

A depressed cat

Person 1: NGL I think I should deprecat that method, there is no real use for it.
Person 2: What's this about depressed cats?!?!
Person 1: Lol, typo

overfly

The opposite of "understand":
under -> over
stand -> fly
Basically meaning "don't understand".

Person 1: "Aaaaand that's how quantum mechanics work!"
Person 2: "...I overfly what you mean"

John Watson: "I believe the killer's motivations are quite understandable, Holmes."
Sherlock Holmes: "On the contrary, my dear Watson. Their motivations are quite overfliable..."

tarsh

Incorrect spelling of trash.

Sometimes means when you're feeling trash and not at the same time.

Guy 1 and Guy 2 texting
Guy 1: I'm feeling tarsh
Guy 2: Trash*
Guy 1: I know what I said

Gio

Gio is the bestest most awesomest person ever, no competition

Gio is awesome!