that one kid 

The kid who is usually quiet and does not have that many popular friends but is talked about by a higher group.

Joe: hey did you see that one kid in science class?
Alex: Yeah I cant believe he shit on the desk!

that one kid by DE1337ME February 7, 2010

that one thing 

Something just worthy enough to remember, but the exact title has been lost. Usually a great friend will understand without any further explanation.

James: "Do you remember when we did that one thing?"
Robert: "And you broke your leg but you wound up getting that nurse's number?"
James: "Yeah!"

that one thing by TheGrainmaker February 12, 2009

that one night

last night and the night before, there was three women, walking down the street. and i was like " hey, what are you women doin'? there's nothin' down there!" and they flew away. i saw them was some birds.

DaFuq?

and that was that one night

that one night by YEE my HAW February 12, 2020

that one chick 

That one girl who ALWAYS shows up around a guy you like and flirts with him. Just when you thought the guy was single, she comes and hooks up with your guy in less than a second.

That one chick became my crush's girlfriend.

that one chick by ....! November 22, 2010

that one guy 

not a particual guy, just a guy that you can point to

"Hey! That one guy over there is wearing shoes!"

that one guy by Mikey Maris Migillicutty June 24, 2003

That one server 

A fucking hell hole of a discord server, ran by killjoy (she is addacted to cereal) and a shitty admin that enforces the shit out of rules, no one likes him btw.

Ever heard of *that one server*?

That one server by Hidden_gaming March 10, 2021

That one dude 

You don't know his name, but it was "that one dude"

Dude 1- "Oh it was that one dude who was a b-baller and raped that chick"

Dude 2- "Kobe Bryant"

Dude 1- "Ya that dude"

That one dude by Shaq October 29, 2003