1 definition by Aeutius

Top Definition
A sexual position similar to a threesome, only with four people in a square formation. Usually involving two men and two women they all lie in a square formation, with the men facing inwards and women facing outwards. So each person is giving oral and revieving oral, and no two people of the same sex touch eachother.
Dave invited his best mate and two women over to his house for a square root.
by Aeutius March 07, 2012

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