"Tatsu" is the verb stem and would not be offensive alone; in fact, like most Japanese words, it has plenty of homonyms including 竜, "dragon". https://en.wikti

"Tatsu" is the verb stem and would not be offensive alone; in fact, like most Japanese words, it has plenty of homonyms including 竜, "dragon". https://en.wiktionary.org/wiki/%E3%81%9F%E3%81%A4#Japanese https://en.wiktionary.org/wiki/%E3%81%9F%E3%81%A4#Japanese Flagging that would be kind of like flagging "hard" in English. Could it potentially be offensive in the wrong context? Yes. Are there brands where that would be absolutely fine? Yes.