Top Definition
To fail spectacularly at something where success was all but assured. From the resounding defeat Hillary Clinton took in the Iowa caucus.
Dude 1: I thought I was going to ace that math exam but I totally hillaried it.
Dude 2: That's your problem, you were so confident, you didn't study. So of course you were hillaried.
by Bif Loman January 04, 2008
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