A different acronym coined by Stephanie Patrick (MatPat’s wife) on a live stream is “Turtles Only Have OneTail”
AP biology test: How many tails does a turtle have?
MatPat/Stephanie: Oh no! I can’t rememeb this one...oh wait, THOT!!! Why yes of course, turtles only have one tail.
Always a female, unless a male undergoes intense hormone therapy and has his penis removed, because as we know possessing that which thots crave makes you immune to becoming one.
Characterized by breathing and a general sense of existence.
Nurse: DOCTOR! Take a look at this.
Doctor: *Looks at mother with despair gleaming from his eyes, as if the gates of limbo had opened before him* I'm...so sorry.
Mother: What's wrong Doctor?
Doctor: It's a baby girl and I'm sorry to say... she's breathing and as we all know, IF SHE BREATHS SHE's A THOT.