Greek here. I would NOT want to associate in any way with a site named Touvlo, even if it is used in a joking manner. Too offensive! For a non native speaker, ignorance is bliss. But once they found out what Touvlo really means, i still bet they would feel cheated, and/or embarrassed. Therefore in both cases, it's a no go. Just my 2 cents.
Thank you, this is good feedback. We’re both native greek speakers, and we meant it in a lighthearted way, but you’re right that not everyone will see it this way.