everyone and their mother

everyone and their mother

A large number or a majority of people. Used hyperbolically. I'm so nervous, everyone and their mother is coming to our show tonight.
See also: and, everyone, mother
Farlex Dictionary of Idioms.

everyone

see entries under every man.
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • everyone and his mother
  • everyone and their brother
  • and his mother
  • everyone and their dog
  • everyone and his dog
  • everybody and his mother
  • everybody and their mother
  • everyone and his uncle
  • everyone and his cousin
  • everyone and their mum