To dance like a fairy.
person 1: Why are you dancing like a fairy?

person 2: duh!! im mcflying!!
by bobbybobobbob November 16, 2007
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The best pop band i have ever hurd there amazing there music is amazing there amazing live there amazing pepole most there singles get to number one they have such a talented song wrighter and there awsome one word for them is awsome

and pepole that dont like em and make hate sites about them and have to say to every one that mentions there name say they suck and there gay E.G. Music...ღ
Most Stuff Bt Nt My Chemical Romance Or Mcfly I WANT THEM 2 DIE IN HELL
Thats the most gayest thing to say ever Just because you dont like them dosent mean that you have to say something like that

not every one likes them but theres not need to say crap like that
me : mcfly rock
girl 1 : Omfg yeah i know dougies so hot
girl 2 : I think they suck and there crap and i dont like you if you like them
girl 1 : soo... we have our opinions
girl 2 : yeah..
by mcflyerrr December 13, 2007
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A unit of measurement consisting of the product of meters cubed and kilograms, divided by seconds raised to the fourth power.

(m^3)kg/(s^4)

The McFly is based on multiplying 88 Miles Per Hour by 1.21 gigawatts, as described in Back the the Future.
Driving at 88 miles per hour and receiving 1.21 gigawatts from a bolt of lightning gives you 47,600,000,000 McFlys, or 47,600,000 kiloMcFlys, or 47,600 megaMcFlys, or 47.6 gigaMcFlys.
by Baller-Ass Nigga October 21, 2004
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a POP band. they even say themselves.
'the words rock and mcfly should never be used in the same sentence together'- QUOTE tom mcfly

yes, alot of the fans are younger girls.
but im sure they would rather have those kinda fans then 'hard' rockers who have long greasy hair and never get girls, who idolise people afriad to show there face so wear a mask.
rockdude: mcfly suck, they are POP POP POP HAHA LEMME GO MOSH TO SLIPKNOT AND GET A SAD LIFE AND SUCK MY DAD OFF

mcfly fan: urmm whatever suits you.
when was the last time yu heard mcfly go on a 'hiatus'?
by indie_punk October 14, 2006
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term used to describe a really good band or a group of really good looking people that play musical instuments. Usually used to descibe an awesomely good British pop band.
dude 1: hey, did you see that band play at the club last night?
dude 2: no, but i heard they were really Mcfly!

or

me: mcfly is the awesomest band in the whole entire world and even though danny doesnt realize it yet, we are going to get married.
by Fuschia=] July 16, 2008
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A UK band that is often compared to today's One Direction. They are TWO different band. so just because Mcfly doesnt talk about a girl being beautiful and junk they are hated. man up, there are other things in life.
One Directioner: Omigod i love 1D they're so hot, cute, talented blah blah blah.
Me: Personally I like McFly.
1Der: how could you like them they ripped of 1D blah blah blah.
Me: -_- STFU
by McFlyin' June 8, 2012
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A debilating cramp that occurs while manipulate ones genitalia, also known as temporary parkisons.
"The other day I was jerking it, I got so into it I pulled a McFly"
by Lagginwaggin June 25, 2009
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