Laid back with the squares like rhombuses

from Instrumentality (Ft. Chance The Rapper & J-emcee) – Something Bout Us Lyrics on Rap Genius

Meaning

Squares is slang for both acid and cigarettes, and laid back is obvious slang for being chilled out.

Of course, a rhombus is a 4-sided polygon without the right-angles of a square — hence it looks like a square that’s leaning back:

Chance also used a smilar line in the song “Smoke Again” saying:

Flip the candy yum
That’s the fucking bombest
Lean all on the square
That’s a fuckin' rhombus

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