WHOP
sock, bop, whop, whap, bonk, bash
(verb) hit hard
whack, wham, whop, wallop
(verb) hit hard; “The teacher whacked the boy”
Source: WordNet® 3.1
Etymology
Verb
whop (third-person singular simple present whops, present participle whopping, simple past and past participle whopped)
(transitive, informal) To throw or move (something) quickly, usually with an impact.
(transitive, slang) To administer corporal punishment
Noun
whop (plural whops)
A blow or strike.
Anagrams
• howp
Source: Wiktionary
Whap, Whop, v. i. Etym: [Cf. OE. quappen to palpitate, E. quob,
quaver, wabble, awhape, wap.]
Definition: To throw one's self quickly, or by an abrupt motion; to turn
suddenly; as, she whapped down on the floor; the fish whapped over.
Bartlett.
Note: This word is used adverbially in the north of England, as in
the United States, when anything vanishes, or is gone suddenly; as,
whap went the cigar out of my mouth.
Whap, Whop, v. t. [imp. & p. p. Whapped; p. pr. & vb. n. Whapping.]
Definition: To beat or strike.
Whap, Whop, n.
Definition: A blow, or quick, smart stroke.
Whop, v. t.
Definition: Same as Whap. Forby.
Whop, n.
Definition: Same as Whap.
Source: Webster’s Unabridged Dictionary 1913 Edition