Top definition
To hold a shit in all day, forcing the stomach to roll it in a tightly packed cinder block and having to force it out with a jack hammer.
Christian, I have to shit so bad but I think I can hold it in until I get off work.

You better not Nick, because you'll be stopped like a concrete shit mixer!!
by DezzzzzzNuts January 09, 2015
Get the mug
Get a Concrete Shit Mixer mug for your Facebook friend Beatrix.