I think this song means, they want to stay up all night, and be there for their friends also true dream girl.
My favourite part of this song is.
" don't even care about the table breaking,.
We only wanna have a laugh,.
(up up all night),
I'm only thinking 'bout this girl I'm seeing,.
I hope she wanna kiss me back.
(up all night).
That part, I feel like I want to be that girl, and I love one direction.