Define Down Good Meaning

Example: Jackson got extra poppy seeds on his burger (even though it would be better with a sesame seed blend)
he’s DOWN GOOD!🤩

"Keep your eye on John he's hasn't been talking with anyone for months now, I knew he was down good."

Darla asked John how his dentist appointment went and John replied he had no cavities for the first time in his life. Darla responded “your down good”