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A derogatory term referring to the size of an obese person's thighs, the close proximity of which causes them to scrape together as they walk.
Bro 1: Hey bro did you see that disgusting thighscraper down the street? Christ, it's depressing to know such an obese person exists. Can't they just stop eating? I mean, like, fuck.

Bro 2: I know bro those thighs were scraping together like nobody's business. Merely existing must cause a serious rash to those thighs bro.
by fielding88 July 27, 2011