hobbyengine

noun
UK /ˈhɒbiˌɛndʒɪn/
US /ˈhɑːbiˌɛndʒɪn/

A hobby engine is a small motor that makes a toy or model move.

He put a hobby engine in his model airplane so it could fly.


OTHER MEANINGS

2. A software tool that helps people build and run their own small projects for fun.

She used a hobby engine to make her own simple video game.

3. A person who powers a hobby group or club with energy and ideas.

Mr. Lee is the hobby engine of our weekend robotics club.

4. A small engine used in garden tools and other light machines.

The hobby engine on the tiller started on the first pull.