Definitions by 1:35_in_the_morning

Pen15 Triangle 

When three guys are blowing each other at the same time with one man on his back, one on his side, and one on his stomach. Pen15 is a more childish way to write 'penis' and Triange refers to the way in which they would be laying.

I heard Jenny recorded Bill, Tom, and Greg doing The Pen15 Triangle.

Pen15 Triangle by 1:35_in_the_morning June 12, 2017