“Out on the Tiles” was mostly written by Bonham, who came up with the idea for the riffs that run through the track. The introduction was used to open live versions of “Black Dog” (from Led Zeppelin IV) and Bonham’s drum solo on the 1977 US tour.

Wikipedia

Meaning of: to enjoy yourself at night by going out to nightclubs, parties, or bars

Origin: British English A to Zed” by Norman W. Schur says: “night on the tiles — Slang. This phrase is derived from the custom among cats of having fun at night on rooftops, which in Britain are often made of tiles.” Similar to “night on the town.

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