Acronym for Keyboard Headbang.
A KBHB is when someone says something really obvious that you have been trying to get them the realize and/or they say something incredibly stupid, thus causing you to smash your forehead into your keyboard and imprint your face with an indent of a spacebar.
Artem: "AHA! Cryptography isn't the study of dead people, but rather the study of codes and ciphers!"

Spenser: *KBHB*
by Seph Infinitium March 15, 2009
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