Once

a once is what twice calls their fans. If you love them once, they will pay you back twice with their love.

Person 1: I lovvveeeeeeee TWICE!! I think I am a once!
Person 2: woohoo!

by sussy_baka_09 November 5, 2022

once in a lifetime

An experience so rare that it often happens only once in a person's entire lifetime. Basically, it can be seen as something that might happen only once in roughly 60 years or longer.

For some, a trip to Disney World is a once in a lifetime experience.

When a friend moves long distance, getting together with that friend for a dinner and a movie is very commonly a once in a lifetime experience.

Getting married is a once in a lifetime experience.

by He who knows11 January 30, 2023

oncen

Doing something exactly once which is right now.

How many times have you lie?
I have lie oncen.

by The Last of Gloomy Birch Tree March 9, 2023

onceromantic

Feeling romantic feelings towards the main antagonist (The Onceler) in the Dr.Seuss book, The Lorax.

A and B were both onceromantic because they felt attracted to The Onceler.

by XAXAXAXXAXAXXAXAXAXXAXA June 18, 2023

Onceler's Law

A fandom phenomina that states, essentially, if a given character in a work has a "good" and "evil" side or persona, the fandom will inevitably create a selfcest ship between the two. Named after the version of the Onceler from the 2012 Lorax film, which famously had a fanbase around the selfcest ship.

I saw some fanart of Simon Keyes from Ace Attorney Investigations 2 shipping him with himself. That's weird.

No, that's just Onceler's Law in action.

by SylentVoidkeeper July 20, 2024

oncetree

The child of the Lorax and the Oncler

Also known as me

Guy: what your name?
Oncetree: Onctree.

by Slickback:o August 6, 2024

oncelerism

A religion based around our beloved Onceler.

“What’s your religion?”
“I’m a proud supporter of Oncelerism.”

by marslix September 17, 2023