"I farted." Of, or relating to the act of releasing flatus. Etymology: Shortened form of incorrect Spanish translation "Yo Gasto." Origin of word also influenced by the location of where it was coined, Barstow, CA. Developed in 1987 by two brothers, 16 and 18, during a family vacation. Shortly after a picnic lunch in Barstow, the elder brother underwent a farting and diarrhea fit, a la Jeff Daniels in Dumb and Dumber. From then on, Barstow became Yogstow and Yogstow became a code word for farting. Word has only ever been used between the two founding brothers, until now.
Self explanatory. Right after you fart, you say "Yogstow."