Behaving in the manner of an assclown; see Sean Hannity Donald Trump, or any Republican member-of-Congress for poignant examples.
More than 1,000 psychiatrists recently stated that Donald Trump's assclownish behavior is due to his malignant Narcissistic Personality Disorder (NPD), but, to borrow a trite Trumpism other "people say" it's mainly because he is a low-IQ person.
If you’ve ever been to a No Talent Ass Clowns concert, you’ve probably seen or heard about “ass clowning” where drunk concertgoers break into cars in the parking lot and defecate on the driver’s seat. It is rumored to have started in 1996 at Consumption Auditorium when Nick Ray Tummo first committed the act. “I was drunk and my friends all thought it was funny so I figured why not keeping doing it at shows? It gives me a kind of special spiritual connection to the concert.”
Adj. Describing on object, idea, or person that is otherwise beyond normal comprehension. An object that in a less stable state of being would cause a complete disruption of ones person or would cause spontaneous combustion, originating at the ass.
1. "Did you hear that little kid on guitar? My God, that was assblowing!!!"