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A mustache and chin patch facial hair combination that true Seahawks fans (12s) grow out during the playoffs for good luck. A hawstache is dyed green and blue for the super bowl but only if the hawks make the big game. A hawkstache must be shaved off the day after either a playoff loss or super bowl Sunday.
Dude. Did you see Matt's hawkstache?! It is FREAKIN' RAD!
by Tim in Sedro January 27, 2015
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