upstab

When a man, who's having a woman ride him in the cowgirl position, decides to take control and lifts her buttocks into the air with both hands and repeatedly thrusts his penis deep into her vagina with rapid, upward movements.

"Yo bromeo, I was gettin rode like a racehorse when I picked her sweet ass up and totally upstabbed that bitch!"

upstab by BigDaddyEP October 23, 2009

upstairs bathroom effect 

A phenomenon in which an occupant of an upstairs bathroom is unable to hear what individuals downstairs are yelling up to him.

Marie: (To Kenneth) Darling, your brother is on the telephone!
SILENCE
Matthew: Alas, dear; he is using the upstairs bathroom and is thus unable to hear that which you are attempting to communicate to him. He may as well be deaf. This is a superb example of the so-called upstairs bathroom effect.

upstairs bathroom effect by Tyler the Definer June 5, 2013

upstanding member 

Hard on erection

Kat says Tony is a Upstanding Member

The bonus is he is a productive Member

upstanding member by Tonythetiler July 29, 2021

Unstable Character Design 

When a specific character from an animated series or TV show can have obvious but not permanent changes to their look such as: hair style or color, clothing, glasses or other accessories.

Princess Bubblegum from Adventure Time has an Unstable character design.

Unstable Character Design by Maxamagican June 6, 2020

UPStalking 

An individual whom follows package delivery services around during the holiday's seeking out opportunities to steal boxes that are left in front of houses by the driver.

"Dude, me and Bob did a little UPStalking yesterday and nabbed a new PC thanks to the dork who left the box at a vacant house."

UPStalking by Jacob Miller September 6, 2005

nothing upstairs 

ignorant and stupid person, with little intelligence,
little education / schooling

he's a twink with nothing upstairs

nothing upstairs by woefwoef January 12, 2008

living on a farm upstate

Being euthanized.

Buster got sick, he got a disease called 'rabies'. But a nice man came and volunteered to take care of him. He's going to be living on a farm upstate where he can run and play.

living on a farm upstate by anonomyous coward August 25, 2010