tinker

Noun

• small mackerel found nearly worldwide

• formerly a person (traditionally a Gypsy) who traveled from place to place mending pots and kettles and other metal utensils as a way to earn a living

• a person who enjoys fixing and experimenting with machines and their parts

Verb

• try to fix or mend
  • Can you tinker with the T.V. set--it's not working right
    
  • She always fiddles with her van on the weekend
    

• work as a tinker or tinkerer

• do random, unplanned work or activities or spend time idly
  • The old lady is usually mucking about in her little house
    

Related words

• Synonyms: 
  chub mackerel , Scomber japonicus , tinkerer , fiddle , putter , mess around , potter , monkey , monkey around , muck about , muck around