Cher just RIPPED Donald Trump in front of 200,000 people -- calling the man a boob-chasing idiot and a "pompous a**hole" ... on her Twitter account.
Cher didn't stop there -- blasting off another tweet immediately after: "Donald Trump ( mr chapter11) is Only a Mean Spirited BAD ACTOR who couldn't find his ass with both hands & a map!"
Cher's attack comes in the wake of Trump taking credit for forcing the White House to release Obama's birth certificate. FYI -- Cher is a very outspoken Obama supporter.
Waiting for your permission to load the comments.