An app available at the App Store that will allow you to choose fart tones in a variety of social situations you wish to appear to pass gas in.
Man, we were packed like anchovies in the elevator and I used Smart Fart; in no time people were getting off on any floor they could!
by Dr Bunnygirl August 12, 2019
A particularly pungent fart whose stench follows its creator wherever he or she goes for a certain period of time. The term is considered a "play on words" originating from Smart Missle.
by It_Was_Not_Me_I_Swear February 2, 2008
Smart fart: A person who knows they are about to let rip a very noisy fart will cough loudly so as to disguise the sound of the fart, quite often in rhythmical time to the blasts and, if very clever, will be in key too.
"We had no idea my uncle had farted as all we heard was his coughing, unfortunately his wry smile and the smell gave it away...so he admitted to his smart fart"
by robsielea September 15, 2008