California Chrome Owner Steve Coburn -- 'Coward' Rant ... Gets the Hollywood Treatment

So, you know how California Chrome owner Steve Coburn threw around the C-bomb after his horse lost the Belmont?

He's not the only who likes to call people "cowards" -- right Walter from "The Big Lebowski" ... and Harry Potter ... and guy from "Back to the Future III???"

Check out this clip made by the grandpa from the CW show "Famous In 12" -- who bears an uncanny resemblance to Coburn (and Wilfred Brimley).