"wallop" in the noun sense
1. impact, wallop
a forceful consequence a strong effect
"the book had an important impact on my thinking"
"the book packs a wallop"
2. wallop
a severe blow
"wallop" in the verb sense
1. whack, wham, whop, wallop
hit hard
"The teacher whacked the boy"
2. wallop
defeat soundly and utterly
"We'll wallop them!"
Source: WordNet® (An amazing lexical database of English)
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