Another traveller in my guesthouse in Naha thinks his local friends taught him a special local word for "cheers", that might sound like "kuri" or "kali".
But the Okinawan owner of the guesthouse doesn't know this word. He doesn't speak Okinawan fluently but he knows lots of words as both his parents were speakers and he's in his 50s.
In any case, I don't mind if it's a word from ウチナーグチ or just modern local slang used by young people.