putterer

But the engineer's the kind of putterer who'll constantly be trying to improve it.

Miles was known on the station for being an excellent "tinkerer and putterer".

I've never been a house putterer.

This great putterer.

Ms. Litton's Sarah is a compulsive putterer, propriety mixed with edginess.

You are all so very brisk about cartelizing facts and diagrams that you make a shy old British putterer like me seem incorrigibly provincial.