Top definition
Is a thing or person that has an addiction of doing your head in. They constantly find a way to piss you off or shit you in every possible way that there is. Most of the time they don't even realise they are doing it. Normally a person with this disability is very competitive and challenge all others stories. They are not commonly bright.
My brothers new girlfriend is major header do-erer, my brain is about to explode.
by elona and dani August 04, 2007
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