chuck (one's) toys out of the pram(redirected from one is chucking one's toys out of the pram)
chuck (one's) toys 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 chucked his toys out of the pram after he was ejected from the match for biting another player.
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