look up any word, like bangarang:
A very small poop. One that seems to be a smaller peice of a larger whole but one that you cannot squeeze out yet, you can only shit a donzil.
Dude I feel like I have 10 tons of shit in my stomach but all I could get out was a donzil!

Hey man wipe that donzil off the toilet seat!
by GroovyDude October 07, 2010