ask for trouble vs hang in

ask for trouble and hang in both are verbs.

Word	Noun	Adjective	Verb	Adverb
ask for trouble	No	No	Yes	No
hang in	No	No	Yes	No

As verbs, hang in is a hypernym of ask for trouble; that is, hang in is a word with a broader meaning than ask for trouble:

ask for trouble: persist with actions or an attitude despite the probability that it will cause trouble
hang in: be persistent, refuse to stop

Other hypernyms of ask for trouble include hang on, hold on, persevere, persist.

ask for trouble (verb)	hang in (verb)
persist with actions or an attitude despite the probability that it will cause trouble	be persistent, refuse to stop