UFC's Nick Diaz -- Rips Bill Belichick ... 'You're Full of S**t, Bro'


012815_nick_diaz_launch He's been called the "King of Trash Talk" ... and now UFC superstar Nick Diaz is spitting his venom right at New England Patriots coach Bill Belichick ... saying the guy is completely "full of s**t."


In a new promo spot for UFC 183, Diaz goes in on Coach B ... mocking his Deflate-Gate news conference ... and claiming that Bill's "been selling bulls**t this whole time."


The 31-year-old ends with this parting shot at the Pats -- "They're selling you all wolf tickets people ... and you're eating 'em right up."


For more sports stories, check out tmzsports.com!