This is a song about "By"

I call that insecure, sh-sh-shawty think she all that

By day she runnin shit by night she on her shit

And this is dc where the rich see the poor

Abandoned by all my friends, labelled by my school,

Bitch you're barely breathin' leavin' on the back of the boat

Real nigguh by far these hoes went by a telescope

So let me tell you about this guy

Kids in the bathroom were just passing by

That's the window into the sky

Just me trying to skate by

I decided to boss up, life's a bitch and i court her

Musician by heart , instrumentalist by nature

Everybody witnessed tombstone by taker and 2f5's by brock the baker

Something like serena mixed with trina, have you seen her

Streets bad, tyga ill, drake magic

Brush by the bleak brick by brick