ot9 

"Ot" means "one true" which means that you "stan" someone and the number added next to it indicates how many people ex: ot3, ot4 etc

ot9 can stand for being a fan of 5sos (4 members) and one direction (5 members) ex: "I’m an ot9"

ot9 by Idk.what.to.put.as.a.name.here June 20, 2021

ot9 

Abbreviation of "one true 9"
Mostly used by fans of nine-membered bands or music groups and insists that there is 9 members, commonly used for kpop group, EXO

We need ot9 (all nine members) for the next comeback album .

ot9 by Anonymous EXOL September 28, 2018

OT9 

noun ; another term for Twice

ot9 consist of:
Nayeon
Jeongyeon
Momo

Sana

Jihyo
Mina
Dahyun
Chaeyoung
Tzuyu

OT9 forever

OT9 by Jas cheezeuuuu July 15, 2019

the famous ot9 gc 

a famous group chat on the app instagram who supports former band ‘One Direction’ and ongoing band ‘5 Seconds of Summer’ with soloists Ashton Irwin and Luke Hemings.

“wait i see them everywhere! who are they?”
“they’re the famous ot9 gc, that’s who!!”

the famous ot9 gc by sophisticcated June 29, 2021

famous ot9 gc 

famous group chat on the existing app instagram whom i’m which support former band ‘One Direction’ with their solo careers and ongoing band ‘5 Seconds of Summer’

“wait i see them everywhere! who are they?”
“they’re the famous ot9 gc, that’s who!!”

famous ot9 gc by sophisticcated June 29, 2021