skin flick vs pic

skin flick and pic both are nouns.

Word	Noun	Adjective	Verb	Adverb
skin flick	Yes	No	No	No
pic	Yes	No	No	No

As nouns, pic is a hypernym of skin flick; that is, pic is a word with a broader meaning than skin flick:

skin flick: a pornographic movie
pic: a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement

skin flick (noun)	pic (noun)
a pornographic movie	a representation of a person or scene in the form of a print or transparent slide or in digital format
	a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement