1 definition by rjay18

A swanky way to refer to a triangle. Most often used by dirty hipsters who consider themselves too clever for math class.
Teacher: "Timmy can you tell me what this shape is?"
Hip-Timmy: "Ma'am, the shape you are referring to is quite obviously a trilateralgon or as you midtown people say, a triangle."
by rjay18 October 7, 2013
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