1 definition by hacker3000

Top Definition
An extremely fucking big rail mounted cannon used by the germans in WW2 to shoot at the british.
Person 1: Look at this big fucking gun i found in my history book! Its called a "Karl Gerät"
Person 2: Holy shit! It's almost as big as my dick!
via giphy
by hacker3000 March 01, 2021

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Buy a Karl Gerät mug!