Reverse Butterfly 

The effect of a beautiful woman dramatically reducing in looks over time.

Dude1: See that gorgeous Italian babe over there?

Dude2: Yeah! She's hot!

Dude1: Man, you need to check out her mom first. She's fugly! That chick is gonna Reverse Butterfly in a decade.

Reverse Butterfly by Estcher August 3, 2010

Reverse Mongolian Butterfly 

A Reverse Mongolian Butterfly is an incredibly complex sex position, which multiple steps are needed to preform said position.

Step 1: You must jelq your way to 12 inches first, 10 being the least, or whatever tool you use to make it bigger
Step 2: Your partner and you will go on each others backs (hence the "reverse part")
Step 3: The one facing the ceiling (top) will put his legs into a C position and a T arm structure, as the bottom (the one facing the ground) will do the same except the bottoms arm structure will be like a 3.
Step 4: You both will consume healthy amounts (but alot) of sulfur hexafluoride, so your voice is at a deep tone
Step 5: Sex

Woman: Ehh, maybe, but not anything boring like doggystyle

Man: Perchance, a RMB?

Woman: A Reverse Mongolian Butterfly? YES!

Reverse Mongolian Butterfly by 8ty May 11, 2024

Reverse Butterface 

The Opposite of a Butterface. In other words, a girl with pretty face but a large body..

That chick is hot! Damn did you see how fat she was? She's a reverse Butterface!

Reverse Butterface by Hough G. Reamer March 3, 2007