Ahmed
Paratroopa
...Via one of his shirts. Instead of explaining everything myself, here is the person who discovered it explaining.
Thanks Nintendo.
In Splatoon 2, Jelfonzo changes his shirt daily, and one of the designs he changes into is this white and red shirt with inkling text on it. extracting the texture gets us a better look at the text on the shirt, and its in a decipherable script. and it translates to... "FUCK YOU"
Thanks Nintendo.