TTFN

Talk to you fucking never

Danielle: Hey Jacqueline, what does TTFN mean?
Jacqueline: Um... I don't fucking know?
Erica: Hmm, it means... TALK TO YOU FUCKING NEVER!

by scandalous bimbo July 30, 2007

Ttyn

A Group That Is Bound To Try To Talk To Or Take Yo Nigga

"Ttyn Bout To Boonk Gang Yo Nigga."

by epasode September 25, 2017

ttfn

talk to you fucking never

"Yo! Jacqueline TTFN you bitch."

by scandalous bimbo July 28, 2007

ttfn

talking to fucking nobody

I feel like I'm ttfn

by anonymous December 18, 2020

ttffn

Ta Ta for fucking now

You are getting on my damn nerves, ttffn!

by ttffn January 16, 2017

Ttytn

Talk to you tonight

-Tonight i am gonna be free, but i have to do some work now
- Oh! Ok
- Alright, ttytn

by Ayme June 22, 2018

ttfn kthx bai

While this literally expands to "tah tah for now, okay, thanks, goodbye..." the pop culture connotation is that you are making a flippant or perhaps merely hasty retreat from a conversation with the speed of a 1980s or 1990s Anime school girl. The character of Yukio in Deadpool 2 comes to mind, as well.

One can also shorten it further as "ttfn kthx bai" or "ttfnkthxbai".

Certainly related to, though a nuance in use of the constituant parts "ttfn" "kthx" and "bai". The "ttfn" adds a friendly aspect, while the "kthx" adds snark, followed by the finality of "bai" - when combined it forms a powerful and ambiguous immediate ending to a conversation, though ironically is often not the last words. It's quite common to have the other party respond with expressions of either offense or solidarity with your assertion using this phrasing.

Friend: "So yeah, I know I've been telling like every gory detail but ..."
doorbell rings
You: "OMG, my pizza is here! I've got to go, sorry!"
Friend: "No problem..."
You: "ttfn kthx bai"
Friend: "Bai"

by Mad Money Willy G August 29, 2018