Wiktionary
bustin'
vb. (eye dialect of busting English)
Usage examples of "bustin'".
Well, I swan, I thought I should have split, I could hardly keep from bustin' right out with larfter.
Well, then he laughs as hearty as if he was a-goin' to pieces, and out he walks agin with his powdered head and pigtail, and rolls down the Strand with the chain hangin' out furder than ever, and the great round watch almost bustin' through his gray kersey smalls.