From the French phrase 'esprit d'escalier,' literally, it means 'the wit of the staircase', and usually refers to the perfect witty response you think up after the conversation or argument is ended. "
I took the title of this thread from a blog that used to be written by the American arty writer Theresa Duncan (she passed away recently).
Anyway... this is a thread where people post up witty responses to old posts.
It'll make it more interesting if you post up the response without any reference to the original post.