Quick to turn it up, even if we ain’t got the CD in

from Kendrick Lamar – The Art of Peer Pressure Lyrics on Rap Genius

Meaning

“Turn it up” is used as a double entendre here. It generally refers to adjusting the volume of a song but here he makes reference to how he and his homies will cause a ruckus (“turnt up”), definitely what some weed and Henn can do to you…

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