jigger
jig-ger
noun
An informal word for a small, often unnamed, mechanical device or object.
"What's that little jigger?"
noun
A small measuring cup for spirits, typically 25 or 50 millilitres.
"Pour a jigger of whisky."
Thesaurus
Synonyms: chigger, redbug, harvest mite, pony, shot glass, jiggermast