Septic Tank Cockney Rhyming Slang

Septic Tank is cockney rhyming slang for yank

Septic is a Londoner’s gently sarcastic way of describing an American. It is not really an insult, it is more playful and cheeky than deliberately derogatory.

This is a very well-known phrase in London and probably throughout the UK.

Reader Bernard Tyrell and two other anonymous readers have said that this phrase is often said asย sepo, with several readers saying thatย sepo is Australian rhyming slang for an American.

See also:ย antiseptic, meaning anti-American.

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