English Pronunciation Audio (General Australian):(file) Noun the whole world and his dog pl (plural only) (British, 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 Synonyms everyone and their dog see also Thesaurus:everybody Related terms the whole world See also for a list of "whole ___" terms that mean "everything / the whole thing", see the whole nine yards one man and his dog (“almost nobody”) Wikiwand - on Seamless Wikipedia browsing. On steroids.