nounpl. boy·os Chiefly Irish and Welsh
Origin of boyoboy + –o.
- (Ireland) A boy or lad.
- (sometimes derogatory (see usage notes)) A stereotypically Welsh form of address for a man (usually younger than the speaker).
(form of address for a man): When used to address a Welshman by a non-Welshman this can be (perceived as) derogatory or patronising; use by obviously Welsh people to anyone is rarely derogatory but may still be patronising, especially if used to address someone older than oneself.