Combination of the Grumpy Munchkin and the Blumpkin.
When a woman sits on toilet and takes a shit while a guy sits in her lap and shits into the toilet while the girl is reaching around with her mouth and giving him a blowjob.
Woman has to be on the bottom incase of horrendous taco shits.
Female flexibility is key!
Big Cat: Hey you know that really skanky waitress from that restaurant.
Little Cub: yeah. What about here?
Big Cat: Big Cat totally got the Grumpy Blumpkin from her.
Little Cub: NFK