up (one's) own ass(redirected from up your own ass)
up (one's) own ass
rude slang Extremely arrogant, self-important, or vain. This dude is just some lowly NASA bureaucrat, but you'd never know that by how far he is up his own ass. A: "Laura is so up her own ass about the work she's done for the company." B: "Are you kidding me? She's driving this department into the ground!"
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