A unit in the kidneys that forms urine.
Excuse me for a second, I need to tap my nephron.
by hose May 28, 2005
A friend, as in "nephew;" usually one that is acting silly, stupid, or dumb. Sometimes used in a condescending manner. Often paired with "silly," "dumb," or "fool" for emphasis.
"Watch your mouth fool nephron! No scufcies!"
by T Prezzy January 03, 2008