1. A foul and highly flammable mixture of gases (including methane), that is ejaculated from the anus and, if inhaled excessively and to a certain extent, can get you very woozy.
2. A dud.
3. Refers to an older creature, most commonly directed towards humans.
1. What is that putrid aroma!? Dave, did you fart again?
2. This car sucks. Every time I turn on the ignition, it just farts.
3. Hey Wesley, look at that old fart with the cane.