Itbb

It's just I'm the biggest bird

Yall Itbb

by Nēv December 31, 2022

istmb

Short for “I swear to my bro”

A phrase used to emphasize that you are telling the absolute truth.

synonyms: onb, I swear on my mum's life, etc.

E.G:

Leah: Did u hear that Jayden and Kiara got back together?
Emily: Tell me you're joking bro

Leah: Istmb I'm not

by totallynotchefk October 28, 2024

ISTB

I swear to bro; substitute to swearing to God

You: “yo she bad”
Friend: “istb, I always see her walking thru campus”

by Masshole3632 February 19, 2026