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A runster is a cool, totally rad person who runs; for fun, fitness, weight loss - it don't matter. Long distances, short distances, slow or fast running in it's pureness.
That runster just finished a 5k. Impressive that runster is.
by The Running Dude February 12, 2014
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Jul 27 Word of the Day
the whale tail is the shape formed when a g-string rides up high over a womans trousers
oh my god look at that butt, her whale tail is showing so high!
by garv November 10, 2003
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Runster is a word that the beloved Hannah Barbara cartoon character β€œScooby-Doo” pronounces the word β€œMonster”,
Scooby: β€œRaggy, RUNSTERS!!!!!!! RUNSTERS!!!!!!!!!

Shaggy: Oh no scoob!!!!!!!! (Screams)
by Dozy_Leo November 10, 2019
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