fartstigator Share definition Flag The instigator of a domino-effect fart-off involving several or more flatulent individuals. Leave it to Jimmy to cause that chain-reaction-- he's a fartstigator!!! fartstigator by Jason M. Atkinson 273 Summitt November 30, 2010 0 0 Get merch Get the fartstigator mug. Buy Now — $32.95 See more merch