Sinead 

When nothing compares to something.

I'm whippin'. This is so fuckin' Sinead.

Sinead by Ravishing Rick Rude October 26, 2006

Sinead 

Sineads are a type of girl who some people will like and others wont. she is amazing and friendly and usually very athletic. Sineads are usually small but good fun and have a good sense of humor. they are good at everything they try, especially sports. People tend to talk about her behind her back but she doesnt let it get to her. sineads seem to hit rock bottom more than anyone else but they get back up again.

'Wow, i met this girl today, she was so good at sports and laughed at everything. i think i'm in love!'
'I bet her name is Sinead.'
'How did you know?'

Sinead by hiiiiiiiii1234 December 14, 2019

Sinead 

a sexy blonde who is soon to be famous, doesnt mind a bit of cock now and again

i wish i could be like sinead!

Sinead by thebitch123 November 11, 2010

Sinead 

A Sinead is the maddest, freakiest, wildest raver there is.
Originating from the North West of England, since 1987 this name has been heard frequently around the Warrington area.
A Sinead is not as quiet as you might think.
First appearances may be decieving!

Mate, she is such a Sinead!

Sinead by NorthernJezebel December 19, 2010

Sinead 

(v) To fart in the presence of others and then awkwardly leave.

"Did you hear her Sinead yesterday during the meeting?"

"Yeah it was disgusting."

Sinead by The Lesser of Two April 14, 2010

Sinead 

Normally Has a Large Forehead
Doesn't get out alot, VERY FIESTY.
Acts Manly, Usually hates Justin Bieber.

Justin - "hey shin head, i hate you"
-sinead cries- Sinead - "I hate you more, im gonna go ride my horsey"
Justin - "Im gonna go ride Lauren!"

Sinead by jade JACKSON July 24, 2011

Sinead 

Someone who defines themselves. A complete whore.

The subject would say:
'a really cool girl. they generally have a love for emos. can be found in most scene places. they are good looking and have a great sense of humour and personality.
they are generally the radest girls around"

I mean who does it?

In speech one might say: Its as annoying as a Sinead up me hole.

Sinead by Billy Banjo April 11, 2007