When someone runs their finger along their arse crack collecting, on the tip of the finger, a load of sweaty shitty arse stink then wiping said finger along the top lip of some unsuspecting person.
I Just pootashed Jeff while he was sleeping so when he wakes he will smell nothing but my shitty arse crack.
A catastrophic event involving poop, typically from a new baby, puppy or drunkadult, in which a rug, wall, piece of furniture, or adult clothing is soiled or destroyed.
Last Wednesday's pootastrophy sent daddy's new leather pants to the cleaners.