from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To strike or hit with a flat object; whack.
- n. A hard blow with a flat object; a whack.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The act of thwacking; a strike or blow, especially with a flat implement.
- n. To strike with a wet, slapping sound.
- v. To whack or hit with flat implement.
- v. To beat.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To strike with something flat or heavy; to bang, or thrash: to thump.
- transitive v. To fill to overflow.
- n. A heavy blow with something flat or heavy; a thump.
from The Century Dictionary and Cyclopedia
- To strike with something flat or hard; beat; bang; whack.
- To ram down; pack.
- n. A sharp blow with something flat or hard; a whack; a bang.
- n. Synonyms See thump.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a hard blow with a flat object
- v. deliver a hard blow to
Imitative.(American Heritage® Dictionary of the English Language, Fourth Edition)
From a variant (influenced by whack) of Middle English thakken ("to stroke"), from Old English þaccian ("to touch gently, stroke, tap"), from Proto-Germanic *þakwōnan (“to touch lightly”), from Proto-Indo-European *tag-, *taǵ- (“to touch”). Cognate with Old Dutch þakolōn ("to stroke"), Old Norse þykkr ("a thwack, thump, blow"), Icelandic þjökka, þjaka ("to thwack, thump, beat"), Norwegian tjåka ("to strike, beat"), Latin tangō ("touch"). More at tangent. (Wiktionary)