Get about as oiled as a diesel train
Gonna set this dance alight

Elton John - Saturday Night's Alright for Fighting lyrics meaning

Meaning

"Oiled as a diesel train" is used as a euphemism for getting very, very drunk (diesel trains, as one might expect, need to be well-oiled).

It also ties into the next line. Oil can be very flammable, and the revellers are going to get so oiled that they metaphorically (and perhaps literally) set the place alight.

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