I can be your pusher, know you need your pusher
Get it how live it when you know you need the hook up
I can get it cook up, know I got you shook up, ooh

from A$AP Rocky (Ft. ASAP Ferg) – Get High Lyrics on Rap Genius

Meaning

“Pusher” better known as a drug dealer, is someone who pushes drugs (weed, cocaine, bars, etc.) as well as being a drug himself, in the context of lust.

A$AP Rocky is the person the girls can go get there drugs from and his drugs are so strong, he has the girls shaking from their high.

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