Mark Cuban -- DeAndre Jordan Has Horrible Taste ... in Desserts (VIDEO)

DeAndre Jordan makes really bad choices ... is what Mark Cuban told us about the Clippers star who got away -- and he wasn't only talking about the infamous free agency flip-flop.

The Dallas Mavericks owner was out in L.A. Wednesday night, and we asked ... if DeAndre was on the open market again, would Mark bite? He responded with a funny metaphor about himself being able to dunk, but you can tell he's really saying ... HELL NO!

Then Mark took a bigger swipe ... at DeAndre's favorite dessert. Earlier this week, Jordan told us the butter cake at Mastro's Steakhouse was his jam. Watch how Cubes crapped on that too.

By the way, Mark had fans (even in L.A.) swarming and calling him, "Mr. President." How awesome was he in "Sharknado 3"?