scream, shout, etc. your head off
scream (one's) head off
To scream or yell very loudly and lengthily. Suzy screamed her head off when I told her she couldn't have an ice cream cone. The stadium was packed with fans screaming their heads off for the popular band. Don't bother listening to the crazies who stand on street corners and scream their heads off at passersby.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
scream, shout, etc. your ˈhead off
(informal) scream, shout, etc. a lot and very loudly: She screamed her head off when I jumped out at her.Farlex Partner Idioms Dictionary © Farlex 2017