Definition: An instance in which the loose skin of one's neck have a vague resemblance to a vulva.
Origin: A combination of the words, "neck" and "pussy". Which was either created as a result of a now famous image of Donald Trump being used on the cover of a magazine or at the very least rose significantly in popularity because of it.
Sussy MC Nussy is another way to tell someone they are weird. Sussy in meaning of Sus (SUSPICIOS) MC Nussy is just a add in to make them more questioning.