15/10/2018
"I'm gonna go and see a man about a horse"
What does this mean?
Well, if you were somewhere socialising and one of the people got up to leave suddenly and said "Gotta go, i'm off to see a man about a horse" it means some 'secret' business and they don't want to tell you what exactly it is.
This is quite often said around London [Cockney English].
"Awight bruv, gotta go, gonna see a man about a horse."