carry, take, etc. coals to Newcastle
idiomPart ofcoal
carry, take, etc. coals to Newcastle — idiom
1. To bring something to a place where it is already very common or plentiful.
1.idiom
Definition
To bring something to a place where it is already very common or plentiful.
Example
Bringing sandwiches to the picnic was like carrying coals to Newcastle.
Selling ice to people in Alaska is taking coals to Newcastle, isn't it?