tin knocker
Noun
Meaning
tin knocker (plural tin knockers)
A sheet metal worker, especially one who works with HVAC ductwork.
We can't hang drywall in here until the tin knockers are done.
Noun
tin knocker (plural tin knockers)
A sheet metal worker, especially one who works with HVAC ductwork.
We can't hang drywall in here until the tin knockers are done.