Mahalo: \ˈmä-hä-lō\ the Hawaiian word for "thank you"
Q: Would one do a shaka hand thing and say mahalo at the same time?
A: Yes, one would give a shaka while saying mahalo.
Q: Is shaka specific to driving?
A: It's a gesture of appreciation and greeting, not reserved for driving situations alone.
Answers by Lissa Healy, Hawaiian