New York Jets tight end Kellen Winslow Jr. was masturbating in a Target parking lot ... with TWO jars of vaseline in his car ... this according to a police report obtained by TMZ Sports. UPDATE: Kellen's rep issued a statement saying the whole thing was a misunderstanding because Kellen was NOT throwing a J. "Kellen pulled over to a parking lot to smoke what he thought at the time was a legal substance. He changed his clothes in his vehicle as to not smell like smoke when he returned home."