Did little Mason Disick just spell out an F-bomb?!

Seriously, we can't quite make it out, but it sounds like he tells the photographer to F-U- - K! It can't be, can it?!

Mase and his mom Kourtney Kardashian were at the family office, on Tuesday, to do some quick business. Kourt was sporting denim cutoffs and Mason wore a tee-shirt reading, "I'm Happy." Good! The don't get foul with the photogs, little guy!