1. A phrase used to describe the joint in a toe allowing it to bend. Phrase existing to differentiate between the common "knuckle", often only used to describe the joint in a finger.
2. Related to camel toe, when the clitoris is swollen enough to add a protrusion to the common camel toe, resembling that of the a "toe knuckle."
3. An individual whose intelligence compares more closely with that of a rock than a human being.
1. My toe knuckles are killing me after wearing those awful shoes.
2. While at the gym, the girl in spandex that was too small must have really liked me as I could totally see her toe knuckle.
3. Did you see that guy try to pick me up at the bar? What a fucking toe knuckle.
It is said of the situation where a person has the bad luck to make contact with his testicles against an undefined surface or object, intentioned or not.
Given the nature of the word, it is more appropriate to design cases where the interaction is made with a moving object, for example, a ball.
Although it is extremely painful for the victim, it tends to be considerably funny to people who witness it.
Today in the baseball game the pitcher took a nutshot; the baseball hit him in the nuts.
Man, I just watched the funniest nutshot video ever.