Hue Jackson was so furious after getting the axe from Cleveland Browns owner Jimmy Haslem after a Week 8 loss to the Steelers, he cussed at his boss and threw him out of his office.
This is all according to an explosive new ESPN report which says ... if you couldn't tell ... things were a MESS behind the scenes in Cleveland this year.
Haslem reportedly went to Jackson's office to deliver the news after the team had chalked up another loss -- sending their record to 2-5-1 on the season.