1. Noun: Referred to as the 'The Prime Rib'; equivalent definition to the phrase 'the illest
'; "the bees knees"
2a. However, can be used as an adjective in which 'prime rib' refers to something that is 'cool, tight, or sweet/distinctively awesome'. Synonyms include: dope
2b. In any situation, derivation of phrase can be used.
Esp. to describe a female's admirable characteristics.
Just bought a leather toilet seat; that shit is the prime rib.
*No other examples are necessary.*