The Brief:

Internet abbreviation for "one true pairing". 

Bluesquiggle
DEEP DIVE

One True Pairing is often used to describe a relationship in fictional texts, films, etc. that somebody wants to happen/thinks works well together.

This acronym is especially popular amongst fandoms like MCU and GoT. Fans use OTP when describing couples they ship.

Brienne and Margaery FTW.

Older Millennials might also remember using OTP as an abbreviation for “on the phone” in the early days of instant-messaging.

Social media users will sometimes use OTP when describing their bae IRL, too.