A short snorter is a banknote which was signed by various persons traveling together or meeting up at different events and records who was met. The tradition was started by bush pilots in Alaska in the 1920's and subsequently spread through the growth of military and commercial aviation. If you signed a short snorter and that person could not produce it upon request, they owed you a dollar or a drink (a “short snort”, aviation and alcohol do not mix!).