The completed project of becoming increasingly metrosexual while at the same time thinking you are better than everybody else. People who have undergone a foursquare transfromation can be seen with spiky hair, plaid button-up shirts, skinny jeans, and unholy amounts of piercings. Another tell-tale sign of a foursuared individual is that they feel the need to sing, although they lack the talents of muscianship and the ability to stay in key.
John use to be really cool, but then he got foursquared and no one likes him.
by The Legend K1T9L9S1 June 28, 2010