the whole world and his dog

Noun

Britain idiomatic plural plural-only

(Britain, idiomatic) Everybody; too many people; a huge crowd.

Japanese Meaning

みんな、全員 / 非常に多くの人々 / 膨大な群衆

When the new café opened, the whole world and his dog seemed to be queuing outside.

新しいカフェが開店したときは、誰も彼もが外で列を作っているように見えた。

Sense（1）

(Britain, idiomatic) Everybody; too many people; a huge crowd.

I'd love to go to the Harry Potter opening, but the whole world and his dog will be there and I don't like crowds