strip poker vs poker game

strip poker and poker game both are nouns.

Word	Noun	Adjective	Verb	Adverb
strip poker	Yes	No	No	No
poker game	Yes	No	No	No

As nouns, poker game is a hypernym of strip poker; that is, poker game is a word with a broader meaning than strip poker:

strip poker: poker in which a player's losses are paid by removing an article of clothing
poker game: any of various card games in which players bet that they hold the highest-ranking hand

Other hypernyms of strip poker include poker.

strip poker (noun)	poker game (noun)
poker in which a player's losses are paid by removing an article of clothing	any of various card games in which players bet that they hold the highest-ranking hand