Definitions by Faith_

OT4.5

Pretentious one directioners who claim to love and follow all 5 of the original members of 1D (Harry, Liam, Louis, Niall and Zayn), but secretly hates one of them, and keep a micro aggressive behaviour towards one (more specifically seen in case of Liam).

Someone who pretends to be morally superior (holier-than-thou) but is opposite of the nature.

"They claim to be OT5 directioner, but secretly their behaviour shows that they're OT4.5

OT4.5 by Faith_ May 9, 2026