UFC tough guy Max Holloway says he's TEAM LEGALIZE WEED ... even though he doesn't smoke it himself.
After Nick Diaz spelled out why the UFC should do away with pot as a banned substance, we asked Holloway for his thoughts ... and he told us he's on board with the benefits of medical marijuana.
But the funniest part of this clip ... when he calls out Anthony Pettis -- diagnosing the UFC fighter with a case of "pussy-itis" ... and informing him, "I got the vaccine!"