Umstroke

Umstroke is a word defined by Definintions.net as "The circumference or periphery of a circle" or "A boundary line, especially one at the outermost limit; an extreme edge." The word umstroke comes from the English words um- and stroke. Umstroke first made a DougDoug appearance in the video "I randomized Zelda, then made the hardest Treasure Hunt of all Time", when it was used as a word DougDoug was banned from saying during a challenge.