Oneship 

A one way relationship

Person A: I like B
Person B: I don't like A
Person C: That's a oneship

Oneship by Pokewhizz July 28, 2016

Oneshia

First girl; normally given to a couples first daughter

Meet our daughter, her name is Oneshia!

Oneshia by MissSOB May 13, 2016

oneshit 

noun, a story with one chapter (oneshot), which was absolute bullshit.

person A: »Wow, that oneshot was really bad!«
person B: »I guess it’s an oneshit then.«

oneshit by avasabrina February 13, 2018

oneshipper

Oneshipper is a term that refers when someone ships a singular ship while their stay in a fandom, and has/shows some kind of "loyalty" to it. They are the reason of the so called "ship wars" inside fandoms, and may or not be obsessive when it comes to their "OTP".

"This new ship is quite cool!"
"Yeah, but I can't like it. Im loyal to my ship."
"You're such a oneshipper."

oneshipper by xxyyyyoloi October 30, 2023