What does Roach mean?
A leftover joint or blunt.
Roach in songs:
“Sittin’ in back of this chair, we hittin’ the roach” – Nas, Rewind.
“I turned a blunt to a roach, with dreams of bein’ a Beatle” – Big Sean, Detroit vs. Everybody.
“Always coming up short, you like the roach of a blunt” – Mac Miller, That’s Life.