/ˈtɪŋkər/
tin·ker
BrE /ˈtɪŋkə(r)/
NAmE /ˈtɪŋkər/
(in the past) a person who travelled from place to place, selling or repairing things
tin·ker
BrE /ˈtɪŋkə(r)/
NAmE /ˈtɪŋkər/
[I]
~ (with sth)
to make small changes to sth in order to repair or improve it, especially in a way that may not be helpful