To strike or hit with a flat object; whack.
A hard blow with a flat object; a whack.
To strike with something flat; whack.
A blow with something flat.
A heavy slapping sound.
Origin of thwack
From American Heritage Dictionary of the English Language, 5th Edition
- From a variant (influenced by whack) of Middle English thakken (“to stroke"), from Old English Ã¾accian (“to touch gently, stroke, tap"), from Proto-Germanic *Ã¾akwÅnÄ… (“to touch lightly"), from Proto-Indo-European *tag-, *taÇµ- (“to touch"). Cognate with Old Dutch Ã¾akolÅn (“to stroke"), Old Norse Ã¾ykkr (“a thwack, thump, blow"), Icelandic Ã¾jÃ¶kka, Ã¾jaka (“to thwack, thump, beat"), Norwegian tjÃ¥ka (“to strike, beat"), Latin tangÅ (“touch"). More at tangent.