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A word used to define a young (usually) male, who looks older than his age and has a very well presented body, found attractive by women, gay men and straight men.
"That bloke was so Malachy!"

"Dude did you see that guy at the beach yesterday?"
"Yeah... The Mal? Juicy as hey!"
by wrathchild March 07, 2008
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Malachy;meanings Great penis in size large six pack and very Attracted by women with the name Isabella. The male also has great hair and big muscles.
Women,"The Malachy was sexy, I wish I had one for a boyfriend."
by Isabella Battiston January 13, 2016
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A kid from Dublin who you originally thinks a scumbag but turns out to be a good lad. Soundest man alive after Gerry Adams.
That lad there is an absoloute malachy
by Woodneister June 20, 2018
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