OpenEtymology

whopper

UKˈwɒpə(r)USˈwɑːpər

Meaning

1n

something that is extremely large or impressive of its kind.

2n

a blatant or outrageous lie.

Structure

word structure
1
whop
to strike
+
2
er
agent/instrument suffix

Usage

the burger chain is famous for its signature whopper sandwich.

he told a whopper about catching a fish the size of a car.

that's a whopper of a mistake; it will cost the company millions.

Etymology

The word 'whopper' originates from the verb 'whop', an echoic term imitating the sound of a heavy blow or strike. The agent suffix '-er' was added, initially forming a noun for something that delivers a powerful impact. This literal sense of a heavy blow evolved metaphorically to describe anything of striking size or force, leading to its primary modern meaning of something extraordinarily large. Subsequently, the idea of a striking or shocking falsehood gave rise to its secondary meaning of an outrageous lie.

Analysis

Structure
whop (to strike) + er (agent/instrument suffix)=whopto strike+eragent/instrument suffix

whop (from middle english 'whappen', likely of imitative origin, meaning to strike or beat); er (from old english '-ere', an agent noun suffix indicating a person or thing that performs an action).

Whopper Meaning & Word Parts (whop + er) | OpenEtymology