When a group of male friends or strangers meet up in a bathroom and spontaneously start pinching the others' penises with homoerotic glee. The "switch" part comes from switching the lights off.
Do you remember last night, Alfred? When we caught Joshua and his boys playing Pinch and Switch in my uncle's dirty washroom for almost an hour? I heard them giggling the whole time they were in there, but by the time they came out they were completely silent and stone-faced. I wish they had invited me, too...
by Djentistrulyoutrageous February 10, 2015
Get the Pinch and Switchmug. 
Like a normal pinch but caused by something significantly stronger, rigid and unforgiving, likely mechanical like pliers or getting your ass cheek caught in a door. Usually a nasty welt is left from it that may start bleeding.
Got an atomic pinch on the heel of my palm, and no I didn't wear work gloves to prevent it from happening.
by EyeWeTodEd August 18, 2014
Get the Atomic Pinchmug. Who?
by ohyhyh August 20, 2021
Get the Lucas Pinchesmug. by nobody else here May 28, 2017
Get the feel the pinchmug. person 1: "Hey man, did you see Kleim last night? Kid totally couldn't handle his alcohol."
person 2: "Yea dude, he needed a pinch runner"
person 2: "Yea dude, he needed a pinch runner"
by DaleHeaddd2 May 9, 2019
Get the Pinch runnermug. A Treadmill Pinch happens when you try to have sex with the gap between your treadmill and the floor, then by some mistake the treadmill is turned on and it rips your foreskin off giving you a Jewish trim.
by Mr.FoxNoir June 17, 2019
Get the Treadmill Pinchmug.