Palm2  —n. 1 inner surface of the hand between the wrist and fingers. 2 part of a glove that covers this. —v. Conceal in the hand.  palm off 1 (often foll. By on) impose fraudulently (on a person) (palmed my old car off on him). 2 (often foll. By with) cause (a person) to accept unwillingly or unknowingly (palmed him off with my old car). [latin palma]