Taako Taaco is a funny name cause yeah you get the joke, it’s the word taco spelled wrong 2 different ways
But then Lup comes along. And without the context of her brother’s name, it’s just
Her name is “Lup Taco”
Common theory is that taaco isn’t his real last name and it’s actually “phrom'teevi” (or some other variation of from tv) and in the same vain, lup would say her last name is loop