(idiomatic, used in similes) Something that has pronounced weasely characteristics, such as pettiness, bad temper, and deviousness.

A bag used to carry stolen goods. / A bag containing free gifts or promotional material.

The suicide technique of combining an overdose with a plastic bag placed over the head and secured with an elastic band.

(medicine) An inflatable bag with a breathing tube attached to collect and analyse the air leaving a person's lungs.

(medicine) A plastic bag containing a yellow coloured (hence the name) liquid mixture of vitamins and minerals administered by IV - intravenous drip. Mostly, but not exclusively, used to treat excessive alcohol intake.

A sleeping bag that tapers toward the bottom.

(military slang) A packed lunch supplied in a bag.

plural of bag nasty

A food product supplied in a bag to be heated in boiling water. The bag may be impermeable, or it may have perforations to allow water to enter and later be drained off.

Alternative form of boil-in-bag