So boots was the loot you found at the shelter and brought home one day, only to find out toobs didn't like boots, and so toobs changed its name via a legal document, without any assistance from it's human.
Ok so let's talk about the Etymology of "Toobs".
I'd joke with my wife that we should tell people that "Toobs" is short for "Tuberculosis"...
...but the real origin on the name is sillier.
I'm a big ol' NieR Automata fan.
When we were talking about getting a cat, I said that if we got two, their names should be 2B and 9S. As time went on, saying "two bee" kind of just got shortened into "Toobs" and it stuck.
Toobs' name at the shelter was "Confetti", which we were not a fan of, sooooooooooo we went with "Toobs."
I mean, just look at her, she looks like a "Toobs", right?