A smelly little rat that no one likes !A bullshitter and two face little slag
Me: OMG don’t be a sinead!
by LOLKIERON123 March 04, 2018
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Sinead is a bitch and will most likely bring misfortune to your life , she will constantly disturb you and can be very clingy quite often.edge lord think shes special just because she likes art , fakes depression ,snob very self absorbed , loves BTS
A:That girl is so basic , who is she?
D:I honestly don't know , most likely a sinead though.
by andy loves candy November 14, 2019
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Sinead is the raddest person you'll ever know. She's extremly sexy and totally awesome :) haters gonna hate because tjey want to be like her . I mean look she just that awesome and extremly goodlooking got all the guys going for her. She's the most intellegent and friendliest personyoull ever know. She may be a bitch but she was born that way :) sinead has the most incredable body. She is one of the most prettiest sexyst girls you'll ever meet :)
Guy:'but why?'
Sinead:' I am sinead bro' :D
by nemo6365563 August 18, 2011
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Verry good looking. The coolest kid around . Pretty rad and awesome. Such a cool kid, yeap :D<3
Guy:'whose that?'
Bob:'that's sinead'
Guy:'woah,she's sexy as hell yo.'
Bob:'fo sho'
Guy:'I'd tap that'
Bob:'dude everyone would'
by flabblalabbla:P August 18, 2011
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a really cool girl. they generally have a love for emos. can be found in most scene places. they are very good looking and have a great scene of humour and personality.
they are generally the radest girls around.
=
person 1- omfg that girl is such a sinead.
person 2- yeah but nowhere as cool as the original sinead!
by pipha August 03, 2006
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The act of publicly Virtue Signaling your acceptance of foreign religions and cultures. (Sineading on social media)

To "Sinead" means to act morally superior by being publicly accepting of everyone.
Why does Brianna feel the need to Sinead on Facebook? Its really annoying that she acts so holier than thou.

Stop Sineading Brianna! We get it, you think your shit doesn't stink.
by Vladar October 28, 2018
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