woe betide sb
said when there will be trouble for someone, or someone will be punished, if they do a particular thing:
This is the second time he's been sent home from school this month, so woe betide him if it happens again!
Thesaurus: synonyms and related words
Threats & warnings
- (I) told you (so)! idiom
- (just) you wait idiom
- bell
- cautionary tale
- do you want to make something/anything of it? idiom
- early warning system
- emergency cord
- fire a (warning) shot across sb's bow idiom
- heads-up
- notice
- ring/sound alarm bells idiom
- siren
- slap
- sound
- tip
- tip sb off
- tip-off
- wake-up call
- warning
- warning/alarm bells start to ring/sound idiom
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