malicious gropage of an exposed knee, often feigned as accidental, we know what they really meant to do.
by Pierre the llama January 17, 2009

Prolonged leaning forward on the elbows whilst engaging in iPhone gaming during the act of having a particularly tricky bowel movement. With the result of leaving a prominent red mark on the thigh saluting your efforts.
After a heavy drinking session on the Guinness, I was birthing a beast from my ass whilst trying to beat that tricky level on Angry Birds and it left me with serious Shitters Knee.
by DeNinjabreadman December 28, 2011

by KneeThinFanPageUnofficial October 19, 2021

Whenever you get up and your knees crackle because you're getting old. Also known as bubbleguts syndrome.
by buttsbot November 29, 2018

Resulting from consuming large amounts of alcohol or smoking too much weed, grandma knees occur when a person begins to lose their balance and begin to cripple at the knees. This phenomenon is similar to knee struggles that elderly women have.
guy #1: How the fuck did you walk home last night you shotgunned two four lokos before you left the party?
guy #2: Trying to walk home was hell, I had a terrible case of grandma knees.
guy #2: Trying to walk home was hell, I had a terrible case of grandma knees.
by yTwigg June 30, 2016

by D from Sale April 14, 2022

by Lewdoo December 4, 2016
