I got a whiskey sour, sober
Until I fall down like it's mid-October

from Childish Gambino (Ft. G.E.T.H.) – My Name Bam-B Lyrics on Rap Genius

Meaning

A whiskey sour is a (delicious!) drink made from whiskey (of which Gambino is quite fond), lemon juice and simple syrup. He drinks until he passes out, and makes a seasonal pun in the process (October is a fall/autumn month)

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