organ grinder
US /ˈɔːr.ɡən ˌɡraɪn.dər/
UK /ˈɔːr.ɡən ˌɡraɪn.dər/

1.
a person who plays a barrel organ, especially in the street
:
•
The old organ grinder and his monkey entertained the crowd in the town square.
•
He earned a living as an organ grinder, moving from street to street.