When your tounging a chicks ass like a five year old licking the bottom of an icecream dish and she farts in your mouth and you lick any excrement ejected.
The state of being constantly flatulent or being susceptible to abnormally vicious farts. Also used as an affectionate adjective to describe unusually flatulent friends or loved ones. Coined by an unknown Harvard alumnus in recent years, remaining in relative obscurity until recent usage by young adults has propelled it into wide-spread social circles.
Person 1: Hey, do you know Jojo? She's so fartatious!
Person 2: Right!? I could smell her from a mile away!