Crack

A Dictionary of the Vulgar Tongue · 1811 · p. 2

A whore. **TO CRACK** To boast or brag; also to break. I cracked his napper; I broke his head. **THE CRACK** or ALL THE CRACK. The fashionable theme, the go. The Crack Lay, of late is used, in the cant language, to signify the art and mystery of house-breaking.