How do you get 2 letter names in Minecraft?

2 letter names are not possible anymore. They used to be possible years back, but then Mojang decided to change it so all names now have to be 3+ letters. This is why whenever someone has 1-2 letter names they are so praised, those names are immediately classified as OG since they're not available anymore.

How many 3 letter combinations are there Minecraft?

Pretty sure there is still thousands of 3-letter users available that are just random letters+numbers. You're right, there would are 36^3 combinations of 26 letters and 0-9, or 46,656.

How do you check if a Minecraft name is taken?

mcchecker Overview

Enter username into search box.
Click 'check' button.
When you find your new username, learn more about changing it here: /guides/changename.

What is an OG name?

OG = Original Gangster. Just means the name is original. The shorter and more common a word is, the more OG it is One of the things I sometimes find frustrating is if someone has an OG name but it's not capitalised. Such as "food" >.