situation vs hot potato

situation and hot potato both are nouns.

Word	Noun	Adjective	Verb	Adverb
situation	Yes	No	No	No
hot potato	Yes	No	No	No

As nouns, hot potato is a hyponym of situation; that is, hot potato is a word with a more specific, narrower meaning than situation:

situation (noun)	hot potato (noun)
a job in an organization	a difficult situation
physical position in relation to the surroundings
the general state of things; the combination of circumstances at a given time
a condition or position in which you find yourself
a complex or critical or unusual difficulty