1. A gibberish cuss word. 2. Used to indicate an incompetent or worthless person. 3. An involuntary and/or nervous twitch, involving the head but primarily the neck. 4. Nonsense words used to describe anything unappealing or distasteful
"All day, Johnny was being a schmidlin, sitting on the couch while Mary cleaned the house."
by KyleRockafella August 25, 2008