A situation where 2 people simultaneously perform the
cupcake movement on each other after farting at the same time. The exact opposite of barter, due to it being 'a
double coincidence of do not wants'
"I trust last night went well, Sir?"
"Bally terrible unfortunately Jeeves, i was planning to
cupcake Aunt Agatha and at the very moment I gave it to her she turned and gave me
one right back!"
"Ah, 'The French Exchange' Sir, a rare and exotic
beast"
"Quite, Jeeves, quite- i've half a mind to leave her my Richmond Regards"
"Very good Sir"
From Jeeves and the Bottomist by P.G. Wodehouse