Chintercourse 

The process of having sexual intercourse while utilizing a strap-on dildo affixed to one's chin - otherwise known as a chindo or chin-do.

Dude, I was having chintercourse with my chick last night. Chintercourse is so much more fun than regular intercourse - I get such a better view of her meat curtains!

Chintercourse by Meat Curtains 4 Ever May 7, 2010

Chintercourse 

Chintercourse is when fat and chubby people have sexual intercouse!

Watching chintercourse porn grosses me out!

Chintercourse by Spencer Deane June 29, 2008

Shintercourse 

Similar to sexual intercourse, but only involves the shins of both parties involved. Any contact with any body part other than the shin renders said shintercourse as void.

Jenny and I had some sweet shintercourse last night, so we didn't lose our virginity or get any STDs!

Robbie and I tried to have shintercourse last night, but our knees touched, so it was technically just sex.

Shintercourse by TrakPak February 28, 2017

Shintercourse 

When one uses their own shins to create sexual arousal/ spark orgasm, such as rubbing the genitals with the shin to result in climax.

Dude, rub your shin down my thick crease, I require shintercourse.

Shintercourse by Butter on a Stick is back July 14, 2020