What is a moose knuckle?

A moose knuckle is a slang term for the outline of a woman's labia visible through tight clothing, particularly leggings, yoga pants, or swimwear. It's considered the female equivalent of a camel toe, though the terms are not entirely synonymous as "moose knuckle" is generally used for a more pronounced or wider outline. The visibility is often caused by the fabric being pulled tightly against the crotch area, accentuating the shape of the labia majora. It can be seen as embarrassing or vulgar by some, while others view it as a natural occurrence and of little consequence. Fashion choices, such as avoiding tight or thin materials in the crotch area, can sometimes minimize its appearance.