lounge lizard vs gigolo

lounge lizard and gigolo both are nouns.

Word	Noun	Adjective	Verb	Adverb
lounge lizard	Yes	No	No	No
gigolo	Yes	No	No	No

As nouns, gigolo is a hypernym of lounge lizard; that is, gigolo is a word with a broader meaning than lounge lizard:

lounge lizard: a man who idles about in the lounges of hotels and bars in search of women who would support him
gigolo: a man who has sex with and is supported by a woman

lounge lizard (noun)	gigolo (noun)
a man who idles about in the lounges of hotels and bars in search of women who would support him	a man who has sex with and is supported by a woman