this one 

an affectionate way of how someone might refer to their "significant other", usually in the presence of that person and others.

"I'm a vegan...but THIS one here loves his sirloin!"

this one by Holly September 5, 2005

this one 

A phrase used by submissives in the BDSM relationship to refer to themselves when they have been forbidden to call themselves 'I'

"This one has been a bad girl."

this one by AlabasterR June 15, 2007

This one 

Hey, I like niggers AND I like white people, right? I mean, race just isn't that big of a deal to me.

Hym "Yeah, totally. It's just that specific one, right? It's just this one. Totally."

This one by Hym Iam June 25, 2024

This one lit now 

When something isn't going right: defining the bad.

It's the opposite of when something is "lit"

Jake: WW3 is supposed to happen in 2021
Nick: "this one lit now"

This one lit now by laviniaa June 12, 2018

This one time at band camp

A phrase (originally came from American Pie 2) used to start off the description of any random, usually kinky or otherwise appalling sexual act. Typically somehow connected with band, but can be entirely random, also.

"This one time at band camp, I sodomized a drumstick."

This one time at band camp by Bob_Lenz April 11, 2008

This one time, at band camp 

Michelle from American Pie always talks about band camp.

"This one time, at band camp, they told us not to have a pillow fight, but we did, and it was so much fun!

This one time, at band camp by Semanari November 9, 2013

This one's sanity must've already crumbled... 

This sentence is often used when someone is acting unusually silly or crazy.

Originally refers to the roguelite roblox game Deepwoken. In-game it is said by one of the ignition union members after facing akira in the depths and being told to back off even though they outnumber him.
Ultimately ending in the squad's death after they pass the line drawn by akira.

A: "sticking out your gyat for the rizzler.. ur so skibidi.. ur so fanum tax"
B: "This one's sanity must've already crumbled..."

This one's sanity must've already crumbled... by r0lfu October 22, 2023