Top Definition
To make an everyday occasion, activity or object a bit more special by using your smarts and skill, rather than just being all rich and throwing money at it.
Frankie: “Hey, how’s your new pool?”

Leon: “Check it out, I spent the afternoon Upper Crusting it with a floating cocktail bar made from Ikea shelves, a pool noodle, and some common household string.”

Frankie: “Cannonball!”
by UpperCruster November 05, 2013

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