I'll be a son of a bitch

== English == === Etymology === Attested from at least 1925. From older son of a bitch, from Middle English biche-sone (literally “bitch's son”). Compare I'll be damned, from the 18th century. === Interjection === I'll be a son of a bitch (vulgar) Expression of surprise or irritation. ==== Synonyms ==== See Thesaurus:wow === References === “I'll be a sonofabitch!”, in Green’s Dictionary of Slang, Jonathon Green, 2016–present