hank panky vs sexual congress

hank panky and sexual congress both are nouns.

Word	Noun	Adjective	Verb	Adverb
hank panky	Yes	No	No	No
sexual congress	Yes	No	No	No

As nouns, sexual congress is a hypernym of hank panky; that is, sexual congress is a word with a broader meaning than hank panky:

hank panky: illicit sexual intercourse
sexual congress: sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur

hank panky (noun)	sexual congress (noun)
illicit sexual intercourse	sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur