You don't want to mess with this Kangaroo!

Meet the most jacked up Kangaroo ever!

He's not bouncy and cute, but rather buff and sexy....for a Kangaroo.

It's probably not a good idea to approach him for a pat, but this Australian Kangaroo is down for a photo shoot to flex his muscles at any time.

The seriously buff 'Roo was spotted by photographer William Thomsen in Albany, Western Australia, and he just had to take pictures.

"Nine or ten ran away but this big guy just stood his ground. We were a bit taken aback. He was huge. He stood right up on his haunches and just stared at us," he told the news outlet", reported Mashable.

Check him out...

This 'Roo is probably related to the other buff kangaroo dude from The Kangaroo Sanctuary in Alice Springs.