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Someone who feels they must treat an escalator as a staircase, bringing guilt to the rest of the parties on the escalator, unless they also do so.
Jane: "Why is that girl bounding up the escalator like it's a flight of stairs? She's making the rest of us look lazy for just standing here riding it!"
Jill: "She's a total escalator overachiever."
by pseuzieq August 03, 2010
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