plastic shopping bag; carrier bag
Refers to the thin plastic bags provided at store checkouts. Often used in contexts of environmental reduction or charging fees.
Plastic shopping bags are now charged for.
I decline a plastic bag and use my reusable bag.
I got a plastic bag at the supermarket.
I had my own reusable bag, so I declined the plastic bag.
Since last year, plastic shopping bags have come with a fee.
I bring my own bag because I don't want to pay for a plastic one.