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1.
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.
автор: DeNinjabreadman 25 декабря 2011
 
2.
The red marks that show up on your knees when a lot of time has been reading, texting, or using a smartphone on the toilet.
Steve: "Did you have a good shit?"
Jamie: "Dang right I did."
Steve: "Yeah I can see your shitter's knee with those shorts on."
автор: magikchef88 15 октября 2013