To take a shit. Generally, the hard, crusty variety.
I need more fiber. I just left the shitter where I dropped a rock.

I’ll be back. Gotta run drop a rock.

My arse is sore AF! I dropped a rock.
by Eaton Holgoode November 3, 2018
What you say to someone when they aren't getting to the point.
Tell us already--drop the rocks!
by エメラルド September 14, 2018