*NFL tight end Fred Davis turned himself in to authorities in DC early Thursday in connection with an alleged assault of his ex-girlfriend, including accusations that he insulted her flat booty … and then attacked her with dirt and flowers.

According to TMZ, Davis’ ex told cops the 28-year-old athlete approached her at a restaurant earlier this month and told her male companion, “Why you with her, she doesn’t have an a**.”

The ex-GF claims Davis then threw dirt and flowers on her from a hanging planter.

Davis, who last played pro football in Washington, was charged with simple assault and attempted threats to do bodily harm, reports TMZ. He pleaded not guilty to both charges and was eventually released on his own recognizance.