You're a fool if you think LaVar Ball and Donald Trump actually hate each other ... 'cause they're just trolling the world for fun -- so says NBA big man Roy Hibbert.
We got Roy at LAX ... and showed him LaVar's new GIF animation of him POSTERIZING the POTUS.
The ex-Laker thought it was pretty cool ... but wasn't about to pretend like there was anything to it.
"I bet they’re best friends," Hibbert told TMZ Sports. "It's playful banter ... they’re probably friends on the low."
Roy might be onto something -- check out how LaVar greeted frenemy Joel Embiid at yesterday's Lakers-76ers game ...
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