Top Definition
The words one shouts ( as loudly as possible ) when they use logic to either:

1)Win an argument
2) Debunk a theory
3) Show someone just how stupid they are
Human 1: I can't believe i did so badly on the test, I even studied for it !

Human 2: That's because you studied for the wrong test you idiot.

Human 2: LOGIC CANNON !
by (legal)druggydude July 07, 2011
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