Slang – Cheerio Slang – CheerioMeaning – Goodbye. Cheerio is a positive, somewhat lively, farewell.This is British English slang. Example: “It was wonderful to see you today. I’m glad everything is tickety-boo. Cheerio!” Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Like this:Like Loading... More English: In Slang British goodbye Slang ← Previous Post Next Post →