WATCH: Rob Reiner and Stephen Colbert clobber Trump before hilariously mimicking his bumbling way of walking and talking

Appearing with Late Show host Stephen Colbert, actor and director Rob Reiner recalled the one time he met Donald Trump -- prior to the then-New York businessman becoming president -- and proceeded to mock his style of walking and talking.

According to Reiner, he met Trump years ago at a boxing event and said he couldn't get over the size of Trump's ego. Reiner then engaged in a discussion with host Colbert about Trump's style of presenting himself which they agreed is nothing less than "bad acting."

"There is no actor I have ever worked who comes in even close to this man," Reiner recalled. "He was never interested in anything we had to do, it was all about him, and I thought, 'Wow, what businessman has this kind of ego?'"

With that, Reiner mimicked the way Trump speaks about himself, before ridiculing Trump's round-shouldered shuffling way he walks.

See for yourself below via CBS: