Sionnnan: noun/verb/adjective
Pronounced: Sha-non
1. Noun: referring to a particularly hideous and unattractive girl.

2. Verb: an act of extreme idiocy/ disgusting sexual depravity conducted under the guise of being an intellectual.

3. Adjective: a discription used to portray an extreamly unwelcome/unwanted/unloved event or person/ animal.
Noun:

Boy: hey sally look at that sionnan.
Girl: Tommy that’s unfair I just ate.

Verb:
Girl: Awh man I did a complete sionnan last night
Boy: what you do.
Girl: I joined a stupid organization and had sex with Clark in on the hill
Boy: eww your gonna catch something from Clark.

Adjective:
Boy: fuck off such a "sionnnan".
by C Niall DeMencha January 21, 2011
1 more definition
Top Definition
The irish for "Shannon"

Shannon: A goddess of beauty and love descented from the heavens. Was created by the gods to make all things on earth happier. She is known for her amazingness, beauty, sex appeal, her stunning smile and bedroom eyes. Is a great friend, lover and will make any man proud to have on his arm and to call her his wife. Loves her family and friends. Has charm, confidence,grace and is very flirtacious. turns all heads when she enters a room. Men want her and women idolize her. She is a rockstar in bed, there is nothing she won't do or try......She will leave you begging for more.If you ever get to know a Shannon consider yourself lucky she will be by your side at all times and love you with all her heart and soul weather it be your her friend,lover or soulmate. She is truely unique and wonderful to know!!! She puts her heart and soul into everything she does. Very artistic, hard working, caring, adventurous, hilarious, glamous. Make a house feel like home. She is sometimes shy or quite, sometimes closes up like a delicate flower if one should hurt her. But why would anyone want to hurt her?
Sionnan is comparable to Aphrodite the Goddess of love & beauty.
by Irish speaker February 23, 2014

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