Knock knock, who could it be? Niggas know I got it on lock
Yawk, yawk - bitch rappers better move ‘fore them niggas get dropped

from Childish Gambino (Ft. Ab-Soul & ScHoolboy Q) – Unnecessary Lyrics on Rap Genius

Meaning

http://embed.vidyard.com/share/g-UyYBwCJaYLorGps26r2Q

To help improve the meaning of these lyrics, visit “Unnecessary” by Childish Gambino (Ft. Ab-Soul & ScHoolboy Q) Lyrics and leave a comment on the lyrics box