look up any word, like thot:
 
1.
An MTF transgendered woman who identifies as a lesbian.
-z0mg, Becky, lyk I totally hooked up with Mitzi last night.
-The tranny? But wait, shouldn't she be into guys?
-Way to perpetuate rigid gender binaries. She's a tresbian!
by Dykonoclast July 02, 2006
 
2.
A man or a woman who only partakes in sexual activity where more than 2 people are present.
Did you see kenny go off with those two huge girls? I hear he is a tresbian now...
by Fishcayke January 25, 2012
 
3.
n. one whose gender identity is usually or always female and who has cycled through three or more sexual identities in recent memory -- at one time being straight, then gay, then bisexual, etc., in no particular order.
Debbie's gone through two chicks and one dude and one she-male in the past year. She's turning into a real tresbian.
by grover January 29, 2004