Conor McGregor is a terrifying topless UFC fighter. He clenches his jaws and shouts war cry.

CONOR MCGREGOR made a bizarre war cry while he posted photos of his hulking body on Instagram.

The Notorious has gained significant weight after he repaired the broken leg he sustained against Dustin Poirier at UFC 264 last July.

McGregor boasted in December that he was "190 lbs of granite."

His bulging biceps were even more visible in his latest video.

McGregor, 34, wore a black tracksuit bottom and nothing else while he was tense for the camera.

He let out a scream as he did this, with his fans struggling to take it seriously.

One wrote: "All this just to get knocked off smh."

Another laughed and said, "Go to bed!"

Another joke was: "Me drunk at the party in the toilet."

Another quipped, "Me after doing ten pushups."

McGregor is currently preparing for his big screen debut by preparing and not just looking into his mirror.

The role of the Irishman is being recast in Roadhouse, 1994 Patrick Swayze classic.

Filming began on August 23, and the Amazon Prime-produced movie will be released in the early 2023.

McGregor posted a behind-the scenes video and wrote "12 hours days." Proper 12 nights."