One who puts or places.
A shot-putter.
(mining) One who pushes the small wagons in a coal mine.
(golf) A golf club specifically intended for a putt.
(golf) A person who is taking a putt or putting.
(intransitive) To be active, but not excessively busy, at a task or a series of tasks.
(intransitive) To produce intermittent bursts of sound in the course of operating.