Green Triangle 

The act of putting "Grass" in the Vagina and eating it out.

If Rosie was to Put "Grass" in Ellens Vagina and then eats it out, thus the green triangle.

Green Triangle by Max Updike May 12, 2008

greek triangle 

the act of three men preforming oral sex in a position that mimics a triangle

The three men decided to perform the greek triangle to build up camaraderie.

greek triangle by scaz willis January 30, 2010