A man who is charming, devilishly handsome and basically the kinda guy every girl goes to sleep dreaming about.

He makes you sigh, he makes you swoon, he has faults but you can't see them because they're carefully hidden by his gorgeous looks, quick wit and big heart.

Stems from Patrick Dempsey's character Dr Sheppherd in TV's awesome series "Grey's Anatomy", other definitions have made him out to be a bit of a bad guy but he's not. He's just been dealt some bad cards!
by Chantal24 March 24, 2007
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A man who is the epitome of charming. A man that makes the wrong decisions, and is often known as an asshole, jerk, or the ultimate heartbreaker. None other than Patrick Dempsey, who plays Dr. Shepherd on the ABC hit series Grey's Anatomy.
"But that does not change the fact that she's got my McDreamy. And my McDog. She's got my McLife!"

"I think I'm going to McVomit."
by Julie Beth September 28, 2006
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A drink similar to tea but that has ice-cream substituted for the milk. Vanilla ice-cream is preferred, however it can be made with any flavour. When all three flavours of Neopolitan ice-cream are used, the drink becomes a rainbow-moss .

Created by @malloryistaken and @klippan_awesome of Australia in 2009, the drink is steadily spreading in popularity.
'I would like to drink a cup of tea but there is no milk...perhaps I will instead drink a McDreamy!'
by malloryistaken January 12, 2010
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Some brain surgeon dude on Grey's Anatomy that my girlfriend is in love with. He is played by patrick dempsey. In season two he had a hot wife but an even hotter girlfriend.
"I'm Dr. McDreamy. I'm tall, and handsome, and I like to lean against things, and ponder the difficulties of dating beautiful women." (Raindrops keep falling on my head, Season Two 2005)
by Kackiieee April 19, 2008
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Hot guy who appears to be perfect in every way untill you have fallen in love with him. Upon this happenening one finds out said perfect man is actually really not perfect. Protagonist.
"McDreamy did the McNasty with the McHottie the McBastard!"
by J'Aime April 23, 2007
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A guy who appears perfect: good looking and smart and with basically everything a girl could ask for, but who turns out to be a total asshole.
Could either do something which makes him an ass, or the girl realises he's not all he's cracked up to be.
Either way he is a let down.
A: How's Jay
B: Well, everything was going fine, we were supposed to go out the other night, but he decided to ditch me for his friends
A: But he seemed so.. perfect!
B: Yeah. But now we know he's just another Mcdreamy
by b3c November 18, 2005
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a guy you think is amazing while all your friends know he's a jack ass
from: "Gray's Anatomy"
-How is Doctor Mcdreamy?
-Actually he's Doctor Mcmarried...
by kunefa September 27, 2005
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