TMZ reports a New Orleans man was arrested at a Willie’s Chicken Shack after allegedly claiming he was going to “blow the bathroom up.”

Problem is … the guy claims he was talking about butt bombs — not actual explosives.

The man in the mug shot is 30-year-old Arthur Posey — who hit up the Canal Street restaurant at night on Nov. 13. 

Employees told police Posey made a violent threat against the place — allegedly saying, “Y’all about to close right now because I’m going to get a bomb and blow this place up.”

When cops tracked down Posey, he claimed it was a giant misunderstanding — explaining he told staffers he was going to “blow the bathroom up” … meaning, he was gonna poop his brains out. 

Cops didn’t buy what Posey was selling and arrested him. He’s now facing 2 counts of communicating false information of planned arson.

He’s due back in court later this month — where he’ll try to convince a judge the allegations are just a bunch of crap.  

No Diva jeans required for this dude, as endorsed by new U.S. attorney-general Matt Whitaker.