kerwhack

"'Twar a-goin' ter guv me a yard or so uv et's tongue, more or less -- consider'bly less of more than more of less -- so I jest salivated it across ther back, kerwhack!"

Deadwood Dick, The Prince of the Road or, The Black Rider of the Black Hills Edward L. Wheeler

There was a rip -- ripping of something, and down he went, till he struck kerwhack! on something far below.

Little White Fox and his Arctic Friends George F. [Illustrator] Kerr 1918