Definitions by Adamas

ot5 

a terminology used in the One Direction fandom for the fans who preferred the band as a 5 member boy group, rather than 4 (after Zayn Malik left in March 25, 2015 ). It is derived from the phrase "One True Pair", where OT means "One True" and the number that follows refers to the amount of members in the band.

Jes: So, you're directioner?
Luis: Yeah, I'm an OT5 stan.
Jes: Oh, but didn't Zayn already leave?
Luis: Yeah, but they never were One Direction if Zayn didn't join the XFactor, to be honest.

ot5 by Adamas December 1, 2020