kelley noticed her friend had some new earth-toned nail polish on, but then realized she'd only been ditch-digging
the act of collecting the dry, crusty brown stuff under your fingernails the morning after you hadn't wiped well enough
"kelley noticed her friend had some new earth-toned nail polish on, but then realized she'd only been ditch-digging" What is the definition of "ditch-digging"?