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.
Robbie and I tried to have shintercourse last night, but our knees touched, so it was technically just sex.
by TrakPak February 28, 2017
When one uses their own shins to create sexual arousal/ spark orgasm, such as rubbing the genitals with the shin to result in climax.
by Butter on a Stick is back July 14, 2020