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Sinead is a really really really badass woman. She is fearless and sexy but still classy. A very nice friend that you want to keep beside you for as long as possible. She is smart as Einstein. Also nice and very friendly, she talks easily with strangers. Girls can be jealous of her, and they should be. she can steal any man (and woman) she wants, taken or not ! Everybody wants to be friend with her but only the best can be. She only has really interesting friends. She is like a star without being one. Just by watching her looks you’ll know she’s a Sinead.
-Omg who that over there ?!

- Never saw her but she is definitely a Sinead
Sinead by SineadFan November 22, 2021
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Have you seen that big weirdo with multicoloured hair? Yeah,
That’s sinead
Sinead by Totallynotciara April 16, 2019
Sinead is a fucking whore
Sinead by The_ginge_ February 16, 2020
sinead: a slang word for syphillis,people who often rely on the 'sinead' catchphrase,have problems with basic pronounciation
i contracted the sinead virus!!!
sinead by pinnochioo1 December 4, 2010
Sinead; bitter just like her cock faced mother..spits the piss of poision ..not one to be within ear shot of.
Girl 1: Sinead tried to get someone stabbed in school today..

Girl 2: That DRAMA BITCH would do anything for a bit of attention..
Sinead by POISIONOUSWENCH October 20, 2010
a cheater and a really bad girlfriend,also she like 3 foot tall bro and also sinead rhymes with lemonade
who your girlfriend? sinead. oh god
sinead by wowza666 June 8, 2019
Sinead is a head head that rages a lot. She doesn’t care what people think about her so is sometimes a bitch. People try make her feel better by saying she is hot but she really is not. She is good at picking up musical instruments and is good at sport. Is offen called sinhead. Have lots of friends and they all love her because she is so kind and cares for them especially when they are sad.
GIRL 1: wow Sinead just had a fat rage at me.

GIRL 2: it’s ok she is ranga.

GIRL 1: yea that’s right a fat ugly ranga.
SINEAD: hahahaha I know aye.
GIRLS 1&2: I forgive you Sinead your my best friend.
Sinead by Hahaharanga January 10, 2018