Is all you had to make a couple rails
And that's a track,

from Lupe Fiasco (Ft. Ed Sheeran) – Old School Love Lyrics on Rap Genius

Meaning

Lupe wordplay

Lu’s playing on the word rails as a synonym for bars and the dual meaning of the word track.

To help improve the meaning of these lyrics, visit “Old School Love” by Lupe Fiasco (Ft. Ed Sheeran) Lyrics and leave a comment on the lyrics box