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A small town in Eastern Oregon, that constantly talks crap about other towns that are better than them, which is everyone. They are especially jealous of Boardman, which has a high school called Riverside, which is three time state champs for soccer, and has really athletic guys, and can school "shumatilla" in almost everything, except being stupid.
Does Umatilla even have a competent sports team?

Why no, no they dont.
by Bigbekay November 27, 2011
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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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2
N. - The bowel movement resulting from desperately refusing to crap for many days while backpacking, being at summer camp, or otherwise lacking access to a reasonable restroom facility.
Arwen cranked out a painful Umatilla after a week, and it was fortunate that she did not need surgery.
by Les Miller September 29, 2007
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