You might say UFC star Nate Diaz is ready to “Stockton slap” the taste out of Jake Paul’s mouth.

Paul, a YouTube sensation-turned-professional boxer, took aim at former UFC two-division champion Conor McGregor with a callout Monday in a profanity-laced video in which he insulted McGregor’s fiancee, Dee Devlin, among other personal shots during the tirade.

That apparently didn’t sit well with Diaz, who took to Twitter to deliver a stern message to Paul for “talking like that.”

Jake Paul u need your ass beat for free u spoiled f*ck u can’t really fight dumbsh*t your gonna end up with your ass whooped for real somewhere talking like that 👊🏼

Paul originally called out Mcgregor and his teammate, Bellator fighter Dillon Danis, after he knocked out former NBA star Nate Robinson in the co-main event of last month’s Mike Tyson vs. Roy Jones Jr. pay-per-view. Since then, Paul has talked a big game and garnered callouts from throughout the sports world. His brother, Logan, is slated to fight Floyd Mayweather in a boxing exhibition.

Paul’s callout of McGregor on Monday included a claim of a $50 million offer for them to have a boxing match.

Diaz, a former rival of McGregor’s after splitting two prior UFC fights, is clearly having none of it.

McGregor is signed on to make his return to the octagon Jan. 23 in a rematch with Dustin Poirier to headline UFC 257 – a booking that Diaz also has thrown shade at.