Seppo

See also: seppo

English

Etymology

From septic tank (rhyming slang for Yank) +‎ -o (colloquialising suffix).

Pronunciation

• Audio (General Australian):

  (file)

• Rhymes: -ɛpəʊ

Noun

Seppo (plural Seppos)

1. (Australia, New Zealand, rhyming slang, ethnic slur) An American.

   Synonyms: (UK) septic; see also Thesaurus:American

   • 2010, Emily Maguire, Smoke in the Room, page 17:

     ‘So, Adam, you have the privilege of being my first Seppo.’
     ‘Your first what?’
     ‘Seppo. You′ve gotta learn to speak Aussie, man. You′re a Yank, so –’
     ‘No, not a Yankee. I′m from –’
     ‘The You Ess Ay. Makes you a Yank. Yank rhymes with septic tank. But we like to shorten names and then add an O at the end - but only if we like you. So Yank is kind of neutral. Septic tank is rude. But Seppo, well, it′s affectionate. Get it?’
     ‘No.’

Anagrams

• Popes, peops, pepos, popes, soppe

Finnish

Etymology

From seppo (“smith, skillful person”), an epithet of the smith Ilmarinen in the Kalevala. Compare Aino.

Pronunciation

• IPA^(key): /ˈsepːo/, [ˈs̠e̞pːo̞]
• Rhymes: -epːo
• Syllabification^(key): Sep‧po
• Hyphenation^(key): Sep‧po

Proper noun

Seppo

1. a male given name
   • 1974, Alpo Ruuth, Kotimaa, Tammi, →ISBN, page 167:

     Kun meidän esikoinen syntyi, niille annettiin nimeksi Seppo ja Pekka ja Tauno.

     Back when we had our eldest son, he was named Seppo and Pekka and Tauno.

   • 1999, Juhani Syrjä, Juho, Gummerus 2008, →ISBN, Juho 19-33, page 182:

     Tukevalle ja isokouraiselle pojalle annoimme nimeksi Seppo.

     We named the sturdy and big-handed boy Seppo.

2. a Finnish surname

Usage notes

• Popular in the 1940s and the 1950s, often in the combination Seppo Ilmari.

Declension

Inflection of Seppo (Kotus type 1*B/valo, pp-p gradation)
nominative		Seppo	Sepot
genitive		Sepon	Seppojen
partitive		Seppoa	Seppoja
illative		Seppoon	Seppoihin
		singular	plural
nominative		Seppo	Sepot
accusative	nom.	Seppo	Sepot
	gen.	Sepon
genitive		Sepon	Seppojen
partitive		Seppoa	Seppoja
inessive		Sepossa	Sepoissa
elative		Seposta	Sepoista
illative		Seppoon	Seppoihin
adessive		Sepolla	Sepoilla
ablative		Sepolta	Sepoilta
allative		Sepolle	Sepoille
essive		Seppona	Seppoina
translative		Sepoksi	Sepoiksi
abessive		Sepotta	Sepoitta
instructive		—	Sepoin
comitative		See the possessive forms below.

Possessive forms of Seppo (Kotus type 1*B/valo, pp-p gradation)

first-person singular possessor singular plural nominative Sepponi Sepponi accusative nom. Sepponi Sepponi gen. Sepponi genitive Sepponi Seppojeni partitive Seppoani Seppojani inessive Sepossani Sepoissani elative Sepostani Sepoistani illative Seppooni Seppoihini adessive Sepollani Sepoillani ablative Sepoltani Sepoiltani allative Sepolleni Sepoilleni essive Sepponani Seppoinani translative Sepokseni Sepoikseni abessive Sepottani Sepoittani instructive — — comitative — Seppoineni second-person singular possessor singular plural nominative Sepposi Sepposi accusative nom. Sepposi Sepposi gen. Sepposi genitive Sepposi Seppojesi partitive Seppoasi Seppojasi inessive Sepossasi Sepoissasi elative Sepostasi Sepoistasi illative Seppoosi Seppoihisi adessive Sepollasi Sepoillasi ablative Sepoltasi Sepoiltasi allative Sepollesi Sepoillesi essive Sepponasi Seppoinasi translative Sepoksesi Sepoiksesi abessive Sepottasi Sepoittasi instructive — — comitative — Seppoinesi first-person plural possessor singular plural nominative Seppomme Seppomme accusative nom. Seppomme Seppomme gen. Seppomme genitive Seppomme Seppojemme partitive Seppoamme Seppojamme inessive Sepossamme Sepoissamme elative Sepostamme Sepoistamme illative Seppoomme Seppoihimme adessive Sepollamme Sepoillamme ablative Sepoltamme Sepoiltamme allative Sepollemme Sepoillemme essive Sepponamme Seppoinamme translative Sepoksemme Sepoiksemme abessive Sepottamme Sepoittamme instructive — — comitative — Seppoinemme second-person plural possessor singular plural nominative Sepponne Sepponne accusative nom. Sepponne Sepponne gen. Sepponne genitive Sepponne Seppojenne partitive Seppoanne Seppojanne inessive Sepossanne Sepoissanne elative Sepostanne Sepoistanne illative Seppoonne Seppoihinne adessive Sepollanne Sepoillanne ablative Sepoltanne Sepoiltanne allative Sepollenne Sepoillenne essive Sepponanne Seppoinanne translative Sepoksenne Sepoiksenne abessive Sepottanne Sepoittanne instructive — — comitative — Seppoinenne third-person possessor singular plural nominative Sepponsa Sepponsa accusative nom. Sepponsa Sepponsa gen. Sepponsa genitive Sepponsa Seppojensa partitive Seppoaan Seppoansa Seppojaan Seppojansa inessive Sepossaan Sepossansa Sepoissaan Sepoissansa elative Sepostaan Sepostansa Sepoistaan Sepoistansa illative Seppoonsa Seppoihinsa adessive Sepollaan Sepollansa Sepoillaan Sepoillansa ablative Sepoltaan Sepoltansa Sepoiltaan Sepoiltansa allative Sepolleen Sepollensa Sepoilleen Sepoillensa essive Sepponaan Sepponansa Seppoinaan Seppoinansa translative Sepokseen Sepoksensa Sepoikseen Sepoiksensa abessive Sepottaan Sepottansa Sepoittaan Sepoittansa instructive — — comitative — Seppoineen Seppoinensa

Derived terms

• Sepponen

Statistics

• Seppo is the 19^th most common male given name in Finland, belonging to 23,993 male individuals (and as a middle name to 4,820 more), according to August 2025 data from the Digital and Population Data Services Agency of Finland.
• The surname Seppo belongs to 59 individuals, according to August 2025 data from the Digital and Population Data Services Agency of Finland.