Nugenometry 

Someone who is a professional at the art of growing marijuana. Or someone who is extremely well versed in recognizing/judging different kinds of bud.

James should teach nugenometry, he knows his shit!

Nugenometry by mitzticals March 10, 2009

Niganometry 

The process of selling narcotics to your professor in order to achieve a passing grade.

"I never study, I just use niganometry."

Niganometry by B Money March 1, 2004

nigonometry 

A version of triganometry made for black people which is extremely easy. It usually covers things like naming types of triangles or drawing them, and if the class is advanced, measuring them.

Shequan: Dude, in nigonometry class today we learned how to draw right triangles!
Jamal: Wow man that's crazy, I heard nig is super hard.

nigonometry by uzi does it April 1, 2010