When you get the last toke in a bowl of marijuana which is mainly ash, the result is a foul taste in your mouth which is sometimes accompanied with ashy debris from the bowl.
Joe passed me the bowl, i took a toke, it was the last hit, the monkeyfart hit. Joe laughed as I gagged and spit ash from my mouth.
Anyone who is noticeably arrogant, obnoxious, dresses inappropriately for the place they're at, and is completely aware of it, but seems to be desperate for the attention. Whenever one of these people walks into a room, everyone in that room turns and looks at each other, rolling their eyes in the same way they would if a monkey had walked in and farted quite loudly.
Did you see that guy at the gym wearing a gold chain, jeans and a wife beater, doing nothing but curls? Man. what a monkey fart!
Did John really show up to his kid's t-ball game on a sunday afternoon wearing a suit and tie? He doesn't work on the weekends, he's a high school teacher. He's a monkey fart.
A syndrome in which one is standing within the confinement of a zoo. Then without warning a monkey jumps to the limb next to said person and releases a small to large burst of air from the buttock region. Sometimes, if lucky, a greasy release will expedite itself among the persons face leaving a stain that most call the mank, or monkey fart stain.