Green’s Dictionary of Slang

bust out v.4

to do, to perform, to make happen.

[US]John Fox Jr ‘Preachin’ on Kingdom-Come’ Hell Fer Sartain and Other Stories n.p.: They all busts out cryin’ an’ shakin’ hands.
[US]‘Hugh McHugh’ Out for the Coin 49: If I don’t get ’pology I’ll bust out crying!
[US]R. Lardner ‘Alibi Ike’ in Coll. Short Stories (1941) 43: Finally he just laid back and busted out laughin’.
[US]J.E. Grinstead ‘Old Pard’ in Goodstone Pulps (1970) 66/1: A man who [...] bust out in a foreign tongue.
[UK]R. Westerby Wide Boys Never Work (1938) 45: What the hell do you think I can do, eh? Bust out crying and take you home to your missus?
[US]Mezzrow & Wolfe Really the Blues 149: It was the hot swan-song of Chicago jazz that we busted out with.
[UK]N. Barlay Hooky Gear 5: Me & Duane catch eyes an we bust out laughin.