TTN
Situation: We are stood in front of a Tornado [even better if at an airshow with a sign saying 'Tornado'], and I said 'That's a Typhoon isn't it' [ie: deliberately wrong],
If you replied 'Is that a Wah?' [ie: are you winding me up?] then I'd smile and say yes.
If you started to correct me [on something so blindingly obvious], Id say 'Wah'.
Seems a little childish, but it does fill a crap day waiting for something to happen.