The small hole, shaped like a triangle located only under a woman's nice tight ass, in between her legs. Only noticeable at the precise moment when her thighs touch, creating a hole above the touching thighs, and under the ass, through which you can see in front of the lady in question. Some men are said to get lost there.
"Hey Tim, Sarah is wearing those tight yoga pants again, look at that Bermuda Triangle, you can see the photo booth from here."
by Cupcake 7137 January 15, 2013
When three persons are engaging in sexual intercourse while each person simultaneously using means of oral and or genital stimulation for both other partners in the group. The equal participation on behalf of each person in the group forms a gang bang in the shape of a triangle
Dude, did you see those three guys in the back of that VW golf? They were all blowing each other, it was like a Bermuda Triangle of sex!
by Walla_B December 12, 2012