A complimentary opinion, as in, "it ranks highly", though the adverb (such as "highly") is deliberately left out. Used mostly when lauding a visual or musical work of art.
adj. Used to describe something of superiorquality. Not to be confused with 'dank', which is of lesser significance.
Homie: "Yo, something smells rank up in here!"
Cuz: "Yea man, check this out. I got that barbecue chicken pizza, add bacon, add jalepeno, everything crust with extra salt. So rank bro."
Homie: "So rank cuz, can I have a slizz?"