A mysterious whore who appears out of nowhere, ruins your life, gives you an STD then disappears into the night.
by Greg McGuire September 11, 2007
A crotch circle is a mysterious and detailed geometric pattern that appears overnight in one's pubic hair. It is not known what causes crotch circles, but some believe aliens are to blame, while others think it is a result of mother nature's forces.
Tom: Babe, you won't believe this... I woke up and there is now a circular pattern with rings in my dick hair!
Sam: Holy shit, that's a crotch circle!
Sam: Holy shit, that's a crotch circle!
by Flaming Arrow 456 February 19, 2021