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noun; A word used to describe someone who is extremely stupid with an excessively large forehead. Also known as a five-head. The word comes from the appearance of Down Syndrome in the person. Down syndrome is caused by something like an extra chromosome, so X-chrome is just an easier way to say extra chromosome.
Damn, John is such an X-chrome. I've never seen any with as big a forehead or as stupid as him.
by Asschafing November 07, 2007
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Apr 22 Word of the Day
When you eat dirt for the first time and leave your family to build a shack in the woods
Bro since I got dirtpilled on Tuesday I have made sooo many worm friends and made them soo many little houses to get married in. Me? Lonely? No you’re the lonely one u lawn owning freak
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by ecogoth December 30, 2020
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