username 

(noun) also called login name, logon name, sign-in name, sign-on name; a unique sequence of characters used to identify a user and allow access to a computer system, computer network, or online account

My "username" is usually 'ThisVivian'.

username by ThisVivian August 13, 2016

usernamestop2 

He is a tiktok Creator who has 3k he never missed and is an intellectual knowing that Naruto> one piece he is also cute

Usernamestop2 never misses

usernamestop2 by Usernamestop2 February 20, 2021

Username Is Already Taken 

The single most frustrating thing in the world. Something that will invariably happen to you because someone 12 years ago took it and now you need to spend the next 10-20 minutes coming up with a new one that wasn't taken or altering your current one until it no longer resembles what you wanted

Any site in the history of the internet: "Username is already taken"

User: "Damn-it, now what the hell do I use?

Username Is Already Taken by SeriousManMan December 27, 2017

Username 

Specific characters which are used together to create a name for an account, that is used for an online service.

1. My username is Crossmake.
2. Sorry, but that username is already in use.
3. Would you like to edit your username?

Username by ㅤ July 2, 2018

usernamestop3

a goat tik toker whos original account got banned bc tik tok is trash

yo you follow usernamestop3?
no
get tf away from me

usernamestop3 by bhubhkbh b khb h8 March 25, 2021

set username placement 

when the government uses the first name of a person only for their college e-mail address to signify that they are well thought of and they use only their last name to signify that they have good character

USC used a set username placement for our students.

set username placement by Coop Dupe June 15, 2018

thlos username 

Roblox users who have the same overused 5 last letters to their name, thlos. They use it to flex their skill (mostly in LSB2)
and they're all over level 100.

Oh hey, look at those players whose thlos usernames.
guy 2: yeah they're edgy as fuck

thlos username by susmogus March 2, 2021