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1.
One who is a fan of the singer Conor Maynard
I'm a total mayniac after hearing "can't say no"
by maynaic May 12, 2012
 
2.
A Mayniac is someone who fangirls (or is a fan of) the one and only Conor Maynard. This person gets wet panties when they hear his angelic voice (especially those high notes) and they spend all day staring at his beautiful face. They love the coco pop and want the D. They are crazy mother fuckers for Conor which is why the name suits the fanbase so well. They be hating on any peasants and they are ghetto af. They are also the best fandom to be apart of as everyone is so lovely and cute in it.
Friend: OMG DID YOU HEAR CONOR MAYNARD'S NEW SONG????
Mayniac: YO I'VE BEEN LISTENING TO HIM SINCE BREATHE SO OF COURSE I'VE HEARD HIS MOTHER FUCKING NEW SONG AND OF COURSE I'M IN LOVE OK HE NEEDS TO STOP, MY POOR OVARIES OK HE'S BEAUTIFUL LET ME LOVE YOU CON OK
by MayniacMadness March 27, 2013
 
3.
Someone who is a fan of guitarist from the rock band Queen, Brian May
"I've followed Brian since Queen started out...that must make me a loyal Mayniac"
by shazzles October 15, 2005
 
4.
1. A person who exhibits the behaviour known as mania
2. A classification of serial killer
3. Someone who is dangerous and born in the month of May.
4. A very good Call of Duty player for the Xbox360.
There is a dangerous Mayniac loose on the streets.
by iKingston April 27, 2011
 
5.
A person who is crazy, insane, or generally dangerous
That Mayniac is going to kill you!!
by iKingston April 27, 2011