'To give one the bag' definitions:

Definition of 'To give one the bag'

From: GCIDE

Bag \Bag\ (b[a^]g), n. [OE. bagge; cf. Icel. baggi, and also OF. bague, bundle, LL. baga.]
1. A sack or pouch, used for holding anything; as, a bag of meal or of money. [1913 Webster]
2. A sac, or dependent gland, in animal bodies, containing some fluid or other substance; as, the bag of poison in the mouth of some serpents; the bag of a cow. [1913 Webster]
3. A sort of silken purse formerly tied about men's hair behind, by way of ornament. [Obs.] [1913 Webster]
4. The quantity of game bagged. [1913 Webster]
5. (Com.) A certain quantity of a commodity, such as it is customary to carry to market in a sack; as, a bag of pepper or hops; a bag of coffee. [1913 Webster]
Bag and baggage, all that belongs to one.
To give one the bag, to disappoint him. [Obs.] --Bunyan. [1913 Webster]