ussually meant to be a name for someone. mostly names that start with the letter L, M, or N. mainly Noah. it seems like thats a good name for it. skank puupy means that the person who is being called a skank puppy is a total fag or just doesn't know what to do in his or her life.
Guy.1 yo, did you see that Noah kid.
Guy.2 yeah, he's a real skank puppy.