tinker

An itinerant tinsmith and mender of household utensils made of metal.

A member of the Irish Traveller community. A gypsy.

(usually with "little") A mischievous person, especially a playful, impish youngster.

Someone who repairs, or attempts repair, on anything mechanical, or who invents such devices; one who tinkers; a tinkerer.

The act of repair or invention.

A hand mortar.

Any of various fish: the chub mackerel, the silverside, the skate, or a young mackerel about two years old.

A bird, the razor-billed auk.

To fiddle with something in an attempt to fix, mend or improve it, especially in an experimental or unskilled manner.

To work as a tinker.

To tinker with; to tweak or attempt to fix.