the.com/excrement

The body's final review of everything you decided to eat.

means Solid waste expelled from the body after digestion, i.e., feces.

from From Latin excrementum, from excernere — 'to sift out' or 'separate off' (ex- 'out' + cernere 'to sift, distinguish'). Cernere is the same root that gives us 'discern' and 'secret,' so your body is etymologically just discerning what it doesn't want.

etymology
from Latin excernere, to sift out
color clue
brown comes from dead red blood cells
fossilized version
called coprolite, studied seriously by paleontologists
daily output
average human produces about 128 grams
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