I'll never be done I'm so rare

Meaning he will never be done (always grinding) I'm so rare, like a steak that is not done.
almoney
this is a clever reference to Jay's longevity and level of talent using opposite terms for the preparation (usually grilling) of meat
j.mo
he will never be done and keep going on and cause he is rare and doesnt seem like the rest who sell out or flop and fail and finish
pauloptimus