when you are on the monkey bars hanging upside down and someone ejaculates with so much power that you swing back and forth.
by sausageonmyeggs December 15, 2020
A fictional dimension from the popular Netflix original Stranger Things. The upside down is where the Stranger Things monsters live.
Person 1: “hey the other day I walked through a strange portal like thing and it seems like I entered a whole new dimension!”
Person 2: “sounds like you entered the upside down”
Person 2: “sounds like you entered the upside down”
by Ocsyt May 05, 2022
Being pegged by your wife with a dildo made from a mold of your own penis. The twist being that the dildo is increased in size by 33% in all dimensions.
"Cheryl wants to spice things up and bring a new man into the bedroom. I've been warming up with the upside down pony pole for a few weeks, so I'll be ready for that big ole bull!"
by Glazedroofhomie December 18, 2022
by Pussy slayer & big dick mcgee July 18, 2017
I can't relax with the gas at the dentist's office, I've been hitting the upside-down beer bong for too long to.
by OGcandypants April 30, 2011
by Eloshia July 18, 2017
by Minty fuckery March 12, 2020