throw (one's) rattle out of the pram(redirected from throwing their rattles out of the pram)
throw (one's) rattle out of the pram
To behave in a petulantly upset or angry manner; to act like an angry child. Primarily heard in UK. Manchester United's star striker threw his rattle out of the pram after he was ejected from the match for biting another player.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.