Big Bertha


noun Informal.

a large, long-range German cannon used during World War I.

British Dictionary definitions for big bertha

Big Bertha

noun

any of three large German guns of World War I used to bombard Paris

Word Origin for Big Bertha

C20: approximate translation of German dicke Bertha : fat Bertha; named after Bertha Krupp, at whose works in Essen a very effective 42 cm mortar was made