WWE legend Tammy Sytch has been thrown back behind bars ... a judge just revoked her bond at a hearing on Friday morning.
Sytch initially posted the bond on May 7 ... one day after she was arrested for allegedly killing a man while driving drunk in March in Florida.
Prosecutors, though, argued that Sytch should not have been given bond -- calling her a danger to the community -- and in a Volusia County courtroom Friday morning, a judge agreed ... revoking it and putting her back in jail.