boo off(redirected from boo them off)
To voice displeasure (by booing) for a performer or performers to the extent that they decide to leave the stage. A noun or pronoun can be used between "boo" and "off." Are you sure you want to perform at that rowdy club? The crowd there is known to boo people off. The audience began booing off the singer after he forgot the words to his song.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.