subs. phr. (colloquial).—An assertion; also a mild oath: ON MY SAY-SO = ‘On my word of honour’: also SAMMY SAY-SO.
1885. CRADDOCK, The Prophet of the Great Smoky Mountains, xii. Pete Cayce’s SAY-SO war all I wanted.
1890. A. E. H. BARR, Friend Olivia, xvii. Kelderby stands in the wind of Charles Stuart’s SAY-SO.
YOU SAY YOU CAN, BUT CAN YOU? phr. (American).—‘You lie.’
