Derogertory word used by the English and Australians for all American nationals. Derived from Rhyming slang (Septic Tank = Yank)

Slang for Americans - as septic tank rhymes with yank, but Americans are also full of shit like septic tanks

septic tank, rhyming slang for yank, an american person

Australian version of "American'. Comes from rhyming slang
Yank = septic tank = "seppo" in the shortened form. Common in Queensland!

An Australian slang term for an American. Seppo being short for Septic, which in turn being short for "Septic Tank"

A derogatory term for Americans, originally a word play on "yank" rhyming with septic tank, shortened to "seppo". The term became popular among the British and the Australians around the time of WWII, when American soldiers were staged in both respective countries on the way to battle in Europe and Asia. At the time, the populations of both countries greatly resented that the Americans were able to seduce their woman with such ease. Not having much recourse, they lashed out the only way they could, creating silly derogatory terms.

Word used by for Americans meaning "Septic Tank Yank", The word was bacically introduced because all Americans talk a load of shit.