Top Definition
(n.) the cause of extremely ridiculous hair (not just out-of-bed hair) and the prelude to constant snyde remarks and being made fun of. The word comes from the fact that an atom bomb might as well gone off on the victim/persons/clueless idiot trying to be something or someone he or she is NOT's scalp.
Dude, what's up with your atomic scalp?

Fix up your hair or you're going to have an atomic scalp!
by HerIQis105 March 21, 2009

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