Seppo 

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

Will those stupid seppos ever shut up bragging about how much lemonade they can drink?

Seppo by William Balderdash March 16, 2003

Seppo 

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

"Did you hear how loud that seppo was on the train, what a dick"

Seppo by Aus John November 1, 2008

seppo 

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

This seppo would not shut up about NFL last week

seppo by Jun-YA October 10, 2006

seppo 

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

We don't like seppos here!!

seppo by Andrew Davison May 2, 2006

seppo 

septic tank, rhyming slang for yank, an american person

would of been a good palace if it wasn't full of seppo wankers

seppo by Anonymous December 9, 2002

seppo 

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

"I wish the Seppo would shut up"

seppo by LMent July 15, 2008

seppo 

seppo (n.) seppos (n. pl.)

Derogatory term used by British and especially Australians for all American nationals.

Origins:
1) Short for 'Separatist', i.e. 1776 separation from the Kingdom of Great Britain.
2) Derived from rhyming slang (Septic Tank = Yank).

1) In their country, seppos give tips regardless of the poor service.
2) My grandad was stationed in Pacific with the seppos during the second world war.
3) Person A: I am from Hungary
Person B: Is that even a country? I know that Europe is a country...
Person C (to Person A): Don't worry, she's just another typical seppo.

seppo by duck n weave August 8, 2012