Jason Momoa gave one hell of a sendoff to his UFC pal Mark Hunt by performing a haka dance ... shirts off, tongues out and all.
We're told Mark and Jason struck up a friendship over the last 6 weeks while they were both in Australia -- Mark training for his fight against Derrick Lewis, and Jason filming for "Aquaman." They've been working out at the same gym called Heartbreak.
As a good luck gesture for Mark's fight next month in New Zealand, Jason -- as well as cast and crew and some of Hunt's training partners -- performed that country's traditional war dance .