I believe the reason for saying the opposite of what you mean is so that you and your friend can say, “We’re clever. Others would not perceive our nuanced tone and would stupidly think we meant what we said.” In the bush, don’t people sometimes make the sound for “snake” when there is no snake, just so they can laugh and mock the person who foolishly believed there was a snake?
I believe the reason for saying the opposite of what you mean is so that you and your friend can say, “We’re clever. Others would not perceive our nuanced tone and would stupidly think we meant what we said.” In the bush, don’t people sometimes make the sound for “snake” when there is no snake, just so they can laugh and mock the person who foolishly believed there was a snake?