Doesn't sound girlie to me, but that's cause I thought of the good Charlotte boys when I read it. Much better than Sparrow

I agree with CharlieBrownGirl, Maddy sounds like Matty to me.

It's a groovy name but I guess that because it's a little like a surname then you would have to make sure it sounds like a first name when matched with your surname iykwim...

I just asked my DH and he said "oh what 'mad-one'?", he he he...I didn't think of that, it's even groovier now!!