Tell me the reason your jumping
Is it so you can fly?
Listen to me girl, I know something
About getting high

from Cocaine 80's – Ground Lyrics on Rap Genius

Meaning

James uses jumping as a metaphor for her attempts at love.
It’s often said people in love feel like they’re flying so he asks if that’s what she’s trying to do.
He’s taking her under his wing because he knows about getting high. As in loving and smoking weed.

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