cheerio UK /ˈtʃɪəɹi.əʊ/US /ˈt͡ʃɪɹi.oʊ/exclamation 2noun 1forms 1 exclamation2 •(UK, informal) Goodbye, an interjection said upon parting."In that case," said Archie, relieved, "cheerio, good luck, pip-pip, toodle-oo, and good-bye-ee! I'll be shifting!" — 1921 •(rare) Hello; a greeting.Cheerio, everybody! What a delightful gathering of charming femininity! — 1947 noun1 •(New-Zealand) A small saveloy often consumed with tomato sauce at parties.The man who has gone around the cocktail circuit pounding cheerios to the end of time did not come in here and open his mouth once on the Bill. — 1978 formscheerios
Cheerio noun1 •An individual piece of the Cheerios breakfast cereal.A single Cheerio fell off my spoon. — 1996 formsCheerios