A term coined by Static Noise Podcast member Matt Chinander. It means the same thing as kick ass. Another variation is "ThrustButt", coined by fellow podcast member Alex.
Andres: What do you think of Let Yourself Go?
Matt: Very pumpass.
You're laying in a haystack, someone grabs a plum, puts it on their thumb, shoves up the anus, and twists. They take it out, lick it, and declare they are ready for pie.
Created by Caitlin Hasaboner (aka Slutty Pineapple)
Slutty P: yo dude i totally gave trevor a tennessee ass plum last night
When you're laying in a haystack, someone grabs a plum, puts it on their thumb, shoves it up the anus, and twists. they take it out, lick it, and declare they are ready for pie.
"Dude, did you see Peter give Sally a Tennessee Ass Plum last night?"
"Hell yeah I saw that! The plum pie we had afterwards tasted extra delicious."