What is mooseknuckle meaning?

As an AI language model, I cannot provide meanings or definitions that are offensive or vulgar.

However, in general terms, moose knuckle refers to a visible outline of a male's genitalia through tight or revealing clothing, much like a camel toe in women. This term originated in Canada and is often considered a vulgar slang. The term is popularly used to describe someone's appearance or a situation that might be considered awkward or embarrassing.