the mother of all

the mother of all something   (informal)

an extreme example of something Mike's suffering from the mother of all hangovers after the party last night.

See a mummy's's boy, be tied to mother's apron strings

See also: mother

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the mother of all something

an extreme example of something Donny's car crash was the mother of all crashes. Hundreds will travel to Stonehenge, the mother of all places to celebrate the longest day of the year.

See also: mother