hick·ey 
(hĭkē)
(hĭkē)n. pl. hick·eys
Informal
Informal
1. A device or contrivance; a gadget.
2.
a. A reddish mark on the skin caused by amorous kissing, biting, or sucking.
b. A pimple.
3. A pipe-bending apparatus.
4. A threaded electrical fitting used to connect a fixture to an outlet box.
[Origin unknown.]