Simple Definition of classic
—used to say that something has come to be considered one of the best of its kind
—used to say that something is an example of excellence
—used to describe something that has been popular for a long time
a : historically memorable
with that said a classic dont always have to be a masterpiece
culturally speaking ,Dont like is a certified classic because in 15 years when you hear the song it will represent a period in hip hop and people who then will be in their 30' s will still turn up to it and will bring back memories of that era ,its the chiraq anthem ,and the beat is hard as hell and its a DRILL classic ,every classic dont have to be deep and lyrical
like this for example ,its a classic ,but its far from a masterpiece ,but people my age will still go crazy over it in a club