WHAT DO WE HAVE HERE ... ?
Cops went in on Damon Arnette throughout the football player's arrest back in July ... with one straight up calling the ex-Raiders defensive back "a f***ing idiot" during the stop -- new police video, obtained by TMZ Sports, shows.
The interaction was all captured on an officer's body cam, revealing cops were super ticked off at the former first-round pick after pulling him over in Miami just after midnight on July 26.
The officers appeared to be upset with Arnette because, according to police documents, just hours earlier, they had pulled him over and found he had been driving on a suspended driver's license, but allowed him to leave so long as he didn't drive again until he got his license reinstated.