Rory McIlroy -- CAN'T NAME THE BEATLES ... 'I Wanna Say George Lucas?'

A Comedy Central star is BLASTING Rory McIlroy ... after the golfer said he thought George Lucas was one of the members of The Beatles. Seriously. It all went down last night ... McIlroy -- along with a bunch of other golfers including…

Mila Kunis Milla Jovovich Minka Kelly Minki van der Westhuizen