SMASH,
to smite, to kick down Stairs. The Chubs tout the Blosses, they smash them, and make them brush; The Sharpers catch their Mistress at the Tavern, making merry without them, kick them down Stairs, and force them to rub off.
Smash in the 1811 Vulgar Tongue
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).