Penciling

When a turd is sticking out of your butt and writing on your underwear.

See also: Brown-penciling, brown pencil.

I have to go bad. I'm penciling here!

Turdleing

When you have to take a dump and crap is sticking out of your butt like a turtle's head from a shell.

See also: penciling.

Is there a porta potty? I don't care it's disgusting, I'm turdleing here!