Usually used when referring to a statement made on T.V. or in the public eye, where the statement is so politically incorrect, the person who said it could be fired.
βDid you hear what Fudge said the other day on the evening news? It was so imus, I think heβs going to get fired!β
Da notorious tough-as-nails four-star general who was temporarily relieved of his duty for referring to his battle-weary-and-disheveled soldiers as "nappy-headed hoes".
If Imus Patton had watched his mouth as well as he strategized his battles, he might have led the Normandyinvasion instead of being withdrawn from combat due to his verbal misconduct.