The term jigger may refer to: A traditional Newfoundland unbaited weighted hook, often designed like a small fish, used with a line to catch larger fish by giving a sharp, upward jerk. An ethnic slur for black people; see List of ethnic slurs#J A Handcar, a hand-operated railway car A Jigger (bartending), a measure of alcoholic beverage ingredients, and the tool used to measure them. A jigger flea or chigoe flea, a parasitic arthropod found in tropical climates A jigger mast or jiggermast,… (More on Jigger)