Either:
1)
A commonly used term, short for âTwitterâ.
It is often added behind a Word to create a âSubtwtâ, those can be big general parts of Twitter (e.g. K-poptwt, Mcyttwt) or smaller groups of people (e.g. Softwaretwt, Gappletwt).
2)
A crying Kaomoji, indicating sadness, frustration and/or pain, TwT
(variations are: T^T, TvT, ToT, T-T, and lowercase versions)
(in text)
Person A: Hey, out of all the CCs you like, which Subtwt is your favorite? I still cant decide TwT
Person B: Iâve been suuuper into Fanart lately, so probably Bootwt? They are just all so talented!