'hickie' definitions:

Definition of 'hickie'

From: GCIDE

hickey \hick"ey\, hickie \hick"ie\n.
1. (Elec.) A device used to adapt a lighting fixture for mounting in an outlet box, or on a pipe. [PJC]
2. A red mark on the skin, caused by a passionate, sucking kiss at that location. [slang] [PJC]
3. a doohickey. [informal] [PJC]