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.
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.