noun

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

2. A member of the Irish Traveller community. A gypsy.

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

Synonyms: traveller, rapscallion, rascal, rogue, scamp, scoundrel

verb

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

2. To work as a tinker.

3. To tinker with; to tweak or attempt to fix.