JIGGER

n. 1 Naut. a a small tackle consisting of a double and single block with a rope. b a small sail at the stern. c a small smack having this. 2 sl. a gadget. 3 Golf an iron club with a narrow face. 4 Billiards colloq. a cue-rest. 5 a a measure of spirits etc. b a small glass holding this. 6 a person or thing that jigs.