A polygon with 999 sides that can easily be mistaken for a circle, but a math teacher will tell you otherwise.
Dude: How the hell am I supposed to solve this shanangon???
Dude 2: That's a shanangon! Damn, thought it was a circle.
Dude 2: That's a shanangon! Damn, thought it was a circle.
by emeryandivory June 28, 2010
Get the Shanangonmug.