Sepp, as in Septic Tank. Septic Tank is a cockney (East London) rhyming slang for Yank.
You dumb Sepp. = You dumb American.
by Commie April 6, 2004
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A cute tall boy who likes hugs, minecraft and mainstream pop music. Sometimes moody but super adorable. His talent is being clumsy, but when you look into his eyes, you melt irl. Likes to vibe together or alone. talented, brilliant, incredible, amazing, show stopping, spectacular, never the same, totally unique, completely not ever been done before, unafraid to reference or not reference, put it in a blender, shit on it, vomit on it, eat it, give birth to it.
Omg it's a wild Seppe
by hoehoehoeoeoeoeeo September 9, 2020
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An uber cool stylish man who always wears a tie. If he doesn't, everyone asks why.
Hey is that Seppe?
No it can't be, he's not wearing a tie
oh...well he looks swish anyway!
by redandblackkk December 2, 2010
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a guy who always plays Counter Strike Source and listens to linking park...
He look there is a Seppe!
by carebear April 24, 2005
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A guy who is pretty much in for anything, arts, music, politics, sex, sports, partying, name it he is in for it.
"Wow I've seen that guy kiss boys and girls already what is he?" "He is probably just a Sepp!"

"Am I seeing this right?! Is that jock reading Henry David Thoreau?" "Yeah he is such a Sepp"
by Heyhey18ddd January 11, 2016
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Dirty Asian who never takes a bath and does rice picking
by Ruel October 9, 2003
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Young Aussie Trying really hard to be a Yank
A Western Australian term started in the year 2000 it can be Male or Female usually under the age of 29 years

They only need two of these to became a Sepp

The use of American Colloquialisms
dress like a American rapper, gangster or just simply wears American baseball hat backwards

Has NO respect towards their parents , Authority and
other.
They look at work has a Gaol sentences
They do not care about the Australian history
swearing in public, steeling, bashing and vandalism
Young Aussie Trying really hard to be a Yank (Sepps)
by George Copley June 7, 2010
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