Logan Paul found out the hard way not to call Jelly Roll a "greasy, redneck prison rat" ... 'cause the WWE Superstar ended up chokeslammed through a freakin' desk as a result -- right on "Jimmy Kimmel Live!"
The 40-year-old singer was tapped to guest host the late-night show during Kimmel's yearly summer vacation ... and it was only right to interview his upcoming tag team partner, Randy Orton, ahead of "SummerSlam" in New Jersey next month -- where the two will face off against Paul and Drew McIntyre.