This reminds me of that episode of The Simpsons where we find out that Homer J. Simpson is Homer JAY Simpson. So, given the idea behind that my guess would be Tea Yoshisaur Munchakoopas.
Well, after much deliberation, research and meditation, I have surmised that the "T." in T. Yoshisaur Munchakoopas is the phonetic sound that Yoshi makes when you jump on his back: "Tauuhvootoo!" lol
Wow, I never even knew that Yoshi had a full name. What is that picture from? Is it some type of Nintendo encyclopedia?
I wonder if the person who originally came up with the name had an idea for what the T stood for or if he just thought it sounded good.
I think it should stand for Trevor