Going Stiff Edit Meaning

1.

Something like the poop shuffle, going stiff is a tightening of all muscles in body to keep the shit held in your arse until you have reached the toilet, you can easily identify when someone is going stiff as they look like they are waddling very quickly while walking.

Hey Greg, what's wrong? Going stiff are you?

See poop, shit, fart, stiff, squeeze