Turns out, Shaq's not the only NBA star with jacked up feet ... right, Reggie Jackson?!

The Detroit Pistons star put his busted up feet on display in the team locker room -- and Andre Drummond was so impressed, he pulled out his phone and shot footage!

Drummond praises Jackson's dogs as "the feet of a hardworking man."

He's right ... but still, gross.

Not as bad as Shaq's disgusting feet ... seen here for your viewing displeasure.

Happy Halloween!