411 REFERENCE · Wiktionary
I'll be a son of a gun
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Compare en son of a gun.
Interjection
I'll be a son of a gun
en euphemistic Expressing surprise or disbelief.
en Thesaurus:wow
en 1920 w:F. Scott Fitzgerald w:The Offshore Pirate w:Flappers and Philosophers New York w:Charles Scribner's Sons 11 https://archive.org/details/flappersphilosop00fitz_0/page/10/mode/2up?q=%22I%27ll+be+a+son+of+a+gun%22 Digging her hands excitedly down into the pockets of her dress Ardita stared at him, speechless with astonishment. “Well, I’ll be a son of a gun!” she said dazedly.