dogs bark, cats meow

Phrase

dogs bark, cats meow

1. (humorous, idiomatic, informal) Used to introduce something seen as inevitable or totally commonplace.
   • One of the world's hardest tasks is to convince innocent, liberal minded Christians, intellectuals and opinion-makers in the mass-communication media that Communists mean just what they say. They believe airplanes fly, boats sail, dogs bark, cats meow and rain falls … but after reading documents...1961 May 28, Unbrainwashed [pseudonym], “Readers in council: No religious freedom in USSR [letter]”, in Kazushige Hirasawa, editor, The Japan Times, Tokyo: The Japan Times Ltd., →ISSN, →OCLC, page 8...
   • He's surprised to learn she knows he drinks too much. "It's in the Met Centre facts of life file," she says; "dogs bark, cats meow and Stenning drinks."1986, Bill Warren, “1962 [The Day the Earth Caught Fire (1961)]”, in Keep Watching the Skies! American Science Fiction Movies of the Fifties, volume II (1958–1962), Jefferson, N.C.; London: McFarland...