Meaning & Definition
noun
a hard hit or blow.
The boxer delivered a wallop that knocked his opponent down.
a strong effect or impact.
The news had quite a wallop on the stock market.
verb
to strike or hit someone or something with great force.
He walloped the pinata with a stick.
to defeat someone decisively.
The home team walloped their rivals with a score of 5-1.
Etymology
Origin unknown; possibly from dialectal 'wollop' meaning to splash or to hit.
Common Phrases and Expressions
wallop someone:
To deliver a strong hit or punishment to someone.
take a wallop:
To experience a strong impact or effect.
give it a wallop:
To apply a strong effort or force.
Slang Meanings
A big hit or something impressive.
That new movie was a wallop at the box office.
To hit unexpectedly.
I didn't see that wallop coming!