Green’s Dictionary of Slang

feed bag n.

1. (US) food, eating; esp. in phr. put on the feed bag

[US]C. Connors Bowery Life [ebook] Ev'ry bloke dat wuz hungry would have a feed bag an w'enever he wanted it.
[US](con. 1920s) ‘Harry Grey’ Hoods (1953) 178: ‘How about the feed bag? Ain’t we entitled?’.
[US]P. Crump Burn, Killer, Burn! 147: As I passed the Greasy Spoon, someone rapped on the window. It was Velma. She [...] sure loved the feedbag.

2. (Aus.) the face; the mouth.

[Aus]E. Dyson Fact’ry ’Ands 54: The bloke that comes canoodlin’ here gets that [i.e. a paste-pot] in his feed-bag!

3. (drugs) a container for narcotics or marijuana.

[US]J.E. Schmidt Narcotics Lingo and Lore 59: Feed bag – A drug addict’s container of narcotics. Also, the narcotics.
[US]J.T. Dunigan Drug Abuse.
[US]ONDCP Street Terms 9: Feed bag — Container for marijuana.

4. (US campus) an appetite.

[US]Eble Campus Sl. Nov. 3: feedbag – appetite: ‘It’s Thanksgiving, and I’m getting my feedbag on’.

In phrases

put on the feed bag (v.) (also get on the feed bag, put on the bag, strap on a feedbag, tie on...)

to eat.

[US]C. Connors Bowery Life [ebook] I sees wun uv dese joints an’ I t'inks dat de next time I feel like puttin’ er feed bag on dat I'll give it er try out.
[US]T.A. Dorgan Indoor Sports 20 Dec. [synd. cartoon] Gee, it’s about 6 o’clock. How about putting the feed bag on.
[US]R. Lardner ‘Rhythm’ in Coll. Short Stories (1941) 355: Fine! And now how about putting on the feed bag?
(ref. to 1880s) Facts abt. N.Y. 10: Johnny Meehan, the bearded proprietor of Dolan’s, had a wide acquaintance among politicians. [...] Frequently he paused to get some friend, perhaps Theodore Roosevelt, then Police Commissioner, or the Mayor, who had just arrived to ‘put the bag on,’ as the waiters would say.
[US]J.A. Russell ‘Colloquial Expressions from Madison County, NY’ in AS V:2 152: Tie on the feed-bag: sit down to a regular meal. ‘Let’s tie on the feed-bag.’.
[US] Cab Calloway & His Orchestra ‘Two Blocks Down, Turn to the Left’ 🎵 Say, Daddy-O, do you know where a cat can have a ball and put on a fine feedbag?
[US]E. O’Neill Long Day’s Journey into Night II i: Come on, Kid. Let’s put on the feed bag.
[US]‘Hal Ellson’ Tomboy (1952) 107: I guess I’ll go up and put the feedbag on.
[Aus]Sydney Morn. Herald 29 Jan. 1/1: ‘Well, ’ow about puttin’ the feed bag on?’.
[US]T. Berger Sneaky People (1980) 134: What say we put on the feedbag at Wong’s Gardens?
[Can]O.D. Brooks Legs 29: Coming back to the yard after putting the feed bag on, we heard a ruckus at the stock pens.
[Aus]R.G. Barrett Between the Devlin 165: It was the dog’s turn to get on the feedbag, which it did.
Online Sl. Dict. 🌐 strap on a feed-bag v 1. to eat a meal; go get something to eat. Origin: the way horses are fed: by strapping a bag full of food to their head.
[US]J. Stahl I, Fatty 60: ‘Strap on your feedbag and come to Kelso’s!’.
[Aus]N. Cummins Adventures of the Honey Badger [ebook] We pulled up for lunch and strapped the feed bag on.