You ain't undercooked, you just underbooked
Telling some of his would be competitors that they are not well done.
If a piece of meat is under-cooked, it would be raw or unprepared. Isaiah’s pretty much saying that the competition isn’t well prepared at all. You could even go to say, they ain’t eatin'. You can’t eat undercooked food now can you?
They’re also under-booked, not getting any shows or venues lined up. Hardly anybody wants to book them for an event.
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