Get in that ass, quick fast, like Ramadan

from The Notorious B.I.G. – Kick In The Door Lyrics on Rap Genius

Meaning

This is Biggie stating that he will assault the aforementioned lesser rappers without hesitation (“get in that ass” is slang for a harsh beating). The adjective “fast” is used here as a pun on the act of fasting practiced by Muslims.

To help improve the meaning of these lyrics, visit "Kick In The Door" by The Notorious B.I.G. Lyrics and leave a comment on the lyrics box