ONCE

South Korean Girl Group TWICE fandom.

ONCE: I just bought KNOCK KNOCK
Thrice: Twice sucks
ONCE: I'll KNOCK KNOCK the **** out of you

by sone & once February 12, 2017

ONCE

Fan-base of popular K-Pop girl group TWICE.

Im a part of "ONCE"

by MangoBerry October 14, 2020

Onc

Onc means on crip that gang members of the crip organization use while texting

Tyrone: these girls be playing too much

Marquon: that’s onc cuz

by Criponc December 04, 2019

ONC

A popular Steam community group (One Nut Crew) that initiates their members through shooting one of their testicles with a revolver, typically one made from gold. Officially formed April 24, 2013 by founder Keenan "Vern" Evans, ONC frequents many games, usually online, such as Garry's Mod, RoboCraft, Minecraft, Unturned, ARMA 2/3, and many others. They can be found on the steam community website under OneNutCrew.

"I ran into those ONC guys a while back, I could tell they were doing initiations by the gun shots followed by a long, high pitched scream."

by FatherVern July 22, 2014

once

In the same tradition of 'deuce,' a once is going number one in the bathroom. A once is a noun, like a piss.

Hey I'll be right back, I got to go drip a once.

by RGW May 27, 2008

once

Another term used in the place of awesome. It can also be used when one agrees with something someone else has said, or agreeing to something. In agreement the word is said as unenthusiastically as possible, yet a nod is crucial. Is pronounced something like: waance

Girl 1: I got the new Coheed cd
Girl 2: Once!

Bob 1: Hey you coming with tonight?
Bob 2: Once. Like I would miss it

Guy 1: That movie was so gay.
Guy 2: Once.

by Nymphololly November 05, 2006

Once

Enough. Overtly so and inclusively.

Trying new things. Once.

by dajxd October 24, 2007