His name is "Satoko Houjou Fan"

Iconic phrases the Meximutt says are "o algo" (or something in Spanish), "no mame wey/guey" (a partially purposeful eye dialect or eggcorn of "no mames, güey," meaning "don't fuck around, dumbass") and other Mexican gang lingo, and "obsessed brimstone." He's notably obese and angry.

He always talks about how anyone and anything is obsessed with him. For him, even a conversation means you're obsessed with him according to him. He usually braps mid-sentence.