(v.) The act of hooking up with your ex's current partner's ex after discovering that your ex is hooking up with the target's ex.
Ex: Jenny and Alan used to date. Chrissy and Dave are dating, but Chrissy leaves Dave for Alan. When Dave and Jenny hook up, they are "completing the square".
by thedl February 28, 2008

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Top Definition
The geometric equivalent of inserting a missing square piece to complete a three-piece square puzzle.
It's a pity that most math teachers and textbooks fail to point out to students some creative uses of the completing the square, other than using it as a key step to derive the quadratic formula.
by MathPlus August 25, 2016

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Lotsa space for your liquids.

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Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt