Green’s Dictionary of Slang

store n.

[note US carnival use store, any form of carnival concession]

1. (US Und.) anywhere that provides the site for a confidence trick.

[US](con. 1905–25) E.H. Sutherland Professional Thief (1956) 59: The fourth step is to get the prospect to the gambling club, known as a joint or store.
[US]D. Maurer Big Con 309: store. 1. See big store. 2. Any establishment against which short-con games like the mitt or monte are played.
[US]W. Keyser ‘Carny Lingo’ in http://goodmagic.com 🌐 Store — Another name for a joint, especially one that features a ‘prize every time’ and is essentially selling cheap prizes for expensive play.

2. (US) used generically for any kind of business enterprise.

[US]Jenkins & Shrake Limo 25: [of a TV network] ‘[I]t’s no secret to you that I didn’t have a damn thing to do with bringing you over to our store’.

In phrases

frame a store (v.)

(US Und.) to ready a place for the carrying out of a confidence trick.

[US]C. Rawson Headless Lady (1987) 34: The fix has to be paid off anyway. So why not frame a store or two?

SE in slang uses

In phrases

give up the store (v.) (also give away the store)

to surrender, to give in; to accept a poor bargain.

[US]T. Pluto Loose Balls 357: When I signed Lucas to that contract, I was widely criticized for giving away the store.
South Coast Today 7 Jan. 🌐 The source said Patriots owner Robert Kraft is ‘not willing to give up the store’ for Belichick and had no intention of calling the Jets to open talks.
[US]‘Cold War Special’ Postscript in Video CNN.com 🌐 Carving up Europe: Did the U.S. give up the store? [...] CNN World Affairs Correspondent Ralph Begleiter, Russian historian Vladislav Zubok and American scholars Tom Blanton and Hope Harrison consider a once-popular proposition in the West—that the United States ‘gave away the store’ to Soviet leader Joseph Stalin, allowing him to establish Soviet control over Eastern Europe for decades.