If another person uses "T" in conversation, it is customary to respond by saying "You know about T?"
and the other person will respond, "I know all about it"
J$: You know about T?
"I don't have a cah, I just ride the T."
used by gays as a way to say wassup, what's going on, etc.
also used if someone is gossipping, "spilling t"
What's t, bitch?
Miss Nick: Gyrl, how bout Miss Mychal sucked trade off at a party.
Mychal Good Judy: ohhh, that's t!
Tweaker 2: Yeah, I got a contact. Lemme get her number.