Chiefly British A member of any of various traditionally itinerant groups of people living especially in Scotland and Ireland; a traveler.
One who enjoys experimenting with and repairing machine parts.
A clumsy repairer or worker; a meddler.
To work as a tinker.
To make unskilled or experimental efforts at repair; fiddle: tinkered with the engine, hoping to discover the trouble; tinkering with the economy by trying various fiscal policies.