Onelang 

An auxiliary language with one predominant source language, which is typically a natural language. This includes Communicationssprache (with French) and Latino sine Flexione (with Latin).

A onelang can be a viable option for an area that already has a natural language filling the role lingua franca though it lacks the neutrality that is usually associated with auxiliary languages.

Onelang by ApricotFields May 6, 2021

Onetangledmess 

She’s a gorgeous girl on TikTok who is super nice to everyone and makes great miraculous videos ❤️❤️

“Onetangledmess on TikTok is one of my favorite mutuals!”

Onetangledmess by Im(inthefbi)totallyanonymous 🔪 June 28, 2021

onelung

to take a huge hit from a bong in one breath. where most people would have to take two or more breaths, onelung is the action of taking the whole hit in one breath.

you have to be a champion to onelung that bitch.

onelung by ttftw June 1, 2009

oneBang 

Meaning is in a fight knocking out the opponent with one punch, or hurting the oponent to the level he gives in or walks off (pussy)

"dont chat shit or i'll oneBang you!"

oneBang by hype kid April 13, 2010