“Bt” means bad timing. Whereas, a person is willing to take whatever risks necessary and is a ride-or-die for someone. A person who is on “bt” can also be sexually on “bt”. It can also be consider a synonym to “demon time”.
Person 1: “Nah don’t play bout him. That nigga stay on bt.”
Person 2: “Alr alr, but ima get what I want. Whether he on bt or not.”