See A Man about a dog
See A Man about a dog : Phrases
Unwilling to reveal the true nature of ones' business.
Uncle Elmer didn't want little Joey to know what he did at the outhouse, so he told Johnny that he was going to see a man about a dog.
The expression comes from the 1866 play 'Flying Scud' by Irish-born playwright Dion Boucicault. One of the characters uses the words as an excuse to get away from a tricky situation. This character says: Excuse me Mr. Quail, I can't stop; I've got to see a man about a dog.
From See A Man to HOME PAGE