And seeing that it was a soft October night,
Curled once about the house, and fell asleep.

from T.S. Eliot – The Love Song of J. Alfred Prufrock on Rap Genius

Meaning

There is nothing to do on an unimportant autumn evening…

The yellow, cat-like fog curls and falls asleep (i.e., settles) around the house. With intentional dissonance, the image portrays something disgusting (urban pollution) in almost playful, endearing terms.

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