Lamorne Morris -- GIRL FIGHT!!! 'New Girl' Star Goes Crazy

"New Girl" star Lamorne Morris booked it down Santa Monica Blvd. Monday night to not only watch a pretty awesome girl fight ... he became the official TMZ blow-by-blow commentator.

Morris was leaving DBA in West Hollywood when he noticed the female fracas … then dragged our photog over for a closer look. Morris was literally drooling as he commentated.

Drunk girls ... it never misses.