in a business or formal environment: 'if you will be so kind as to excuse me for just a moment, i must promptly drop root in the nearest lavatory
to excrete feces from the anus by means of bowel movement, name so for its tendril or root-like appearance as it lays at the bottom of the bowl
"in a business or formal environment: 'if you will be so kind as to excuse me for just a moment, i must promptly drop root in the nearest lavatory" What is the definition of "drop root"?