In Penny Lane there is a fireman with an hourglass
And in his pocket is a portrait of the Queen
He likes to keep his fire engine clean
It's a clean machine

from The Beatles – Penny Lane Lyrics on Rap Genius

Meaning

A man who keeps punctuality as a goal. Very indicative of the British Condition, subverting all of one’s desires to an admiration and striving for a goal that one can keep, instead.

He keeps a portrait of the Queen, another person he’ll never reach or touch, but his perversion is that the Queen — a ‘handsome’ woman — is his masturbatory fantasy, and, like clockwork — punctually — he masturbates (keeps the fire engine clean) often — it is, after all, a clean machine, worthy of the Queen.

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