tinker
verb
tin·ker
| \ ˈtiŋ-kər
\
\
tinkered;
tinkering\ ˈtiŋ-k(ə-)riŋ
\
\
Definition of tinker
(Entry 1 of 2)
: to work in the manner of a tinker
especially
: to repair, adjust, or work with something in an unskilled or experimental manner : fiddle
always tinkering with his car
: to repair, adjust, or experiment with