Green’s Dictionary of Slang

break out v.

1. (US) to appear.

[Aus]Bulletin (Sydney) 20 Jun. 6/1: The Rev. J.F. Horsley, who has been playing the part of literary apostle of Barkerism this couple of years back in Victoria, has broken out in a fresh place.

2. to break open a package and remove its contents; to get an article or articles from a place of storage.

[US]R.H. Dana Two Years before the Mast (1992) 100: There is always a good deal to be done in the hold: goods to be broken out.
[UK]N. Kingsley Diary (1914) 22: Broke out our chests to-day, found all our things in good order. [Ibid.] 73: They broke out the baggage room to-day to get iron for various purposes [OED].
[UK]Fraser’s Mag. XV. 221: Afterwards the fish are broken out and washed, and then packed in wooden hogshead casks .
[US]A.J. Barr Let Tomorrow Come 228: These screws are all so chipper they would break out guns and make them crack after a running vic for the fun of it.
[US]Mezzrow & Wolfe Really the Blues 12: Professor Scott would break out his trombone and join in.
[US]E. Gilbert Vice Trap 41: Come. Break out a joint, jesus.
[US]H. Rhodes Chosen Few (1966) 58: Jim needed such a gathering to persuade him to break out his raisin brew.
[US]A. Brooke Last Toke 200: Break out one o’ them joints, bro.
[US](con. 1970) J.M. Del Vecchio 13th Valley (1983) 81: Soldiers were breaking out bottles of hard liquor.
[Aus]M.B. ‘Chopper’ Read Chopper From The Inside 66: Now and then he would break out a small bottle of whisky.
[US]T. Dorsey Florida Roadkill 137: The ad exec broke out his stash immediately.

3. (US tramp) to become a tramp.

[US]J. Flynt Tramping with Tramps 387: The man who has ‘just broken out’ is [...] one who has newly joined the fraternity.

4. (also break over) to become socially or sexually wild.

[US]‘Digit’ Confessions of a Twentieth Century Hobo 118: Your wife, too, is rather nice when she does not break out.
[US]K. Brush Young Man of Manhattan 89: Don’t be mean. Let Toby break over, just this once [...] let him have a couple of drinks.
[WI]Francis-Jackson Official Dancehall Dict. 7: Bruk-out to let loose, to become wild or promiscuous.

5. to wake someone.

[US]Heggen & Logan Mister Roberts I i: Why didn’t you break me out?

6. (US black) to leave.

[US]E. De Roo Young Wolves 53: Let’s break out of here. Steaks at the Highway Hangout.
[US]D. Burke Street Talk 2 34: This party’s played [...] I’m breakin’ out.
[US]‘Touré’ Portable Promised Land (ms.) 157: We Words (My Favorite Things) [...] Sho nuff. Bust this. Ass out. Break out. Bug out. Kick it.

7. to free, e.g. from prison.

[US]H. Rap Brown Die Nigger Die! 83: They put me in the city jail in Alexandria and when the Black community got the word they came down to the jail. I heard a lot of noise and I didn’t find out until later that they had come down there and were willing to break me out.
[US]‘Red’ Rudensky Gonif 49: Two major outfits outside were in dire need of a box slugger and would collaborate to break me out.
[US]S. Morgan Homeboy 3: A biker called Sugarfoot broke her out of the Encino splitlevel.