She was a bag of nerves before her big presentation.

The embassy sent several diplomatic bags to the consulate.

I bought a new gig bag for my guitar.

I need to buy new gig bags for my instruments.

I bought some new shopping bags at the store.

I bought a pig in a poke, it turned out to be a puss in a bag.

I packed all my clothes in my weekend bag for the trip.

He asked the driver to blow in the bag to check for alcohol.

I need to buy a new vacuum bag for my vacuum cleaner.

I need to buy some vacuum bags for my cleaning machine.