Ripping a fart of deathly proportions. This definition can be used when a homie (or homegirl) rips a stinky so preposterous, you might think you have asthma. Additionally, rippin the illest is most utilised when a homie gotta dookie, causing a rip, but can be used in cases of heinous stinkies.
âBro, you be rippin the illest right now!â
âDat stinky the illest, wtfâ
âWhy you always gotta rip the illest when the windows are downâ