Definitions by Eimho

Parabola 

A type of face one makes when angry. Involves the mouth frowning downwards to form an 'n' shape. Various different types e.g human parabola where the body also forms the structure of a parabola at the same time as the mouth.

Allan got angry so pulled off an enormous parabola.

Parabola by Eimho November 2, 2011