Louie

A louie is a fan of One Direction's Louis Tomlinson.

A quick insight into the fandom:

SOLO LOUIES are in a dispute with solo harries (fan's of One Direction's Harry Styles). This quarreling was probably initiated by the ship 'Larry Stylinson', and the effort on both sides to prove that Harry would never date Louis and vice versa.
LARRY SHIPPERS obviously don't contribute to the dispute, as they think Larry Stylinson would be cute, or even believe it is already real. -> Larries
DIRECTIONERS probably stan both Louis and Harry.

People often accuse Louies of being aggressive. I think most pop fandoms these days are pretty intense. Louies are very protective of Louis, as he was often criticized for his singing voice and other things. He is actually a very big charity person, very sweet to his fans and people he collaborated with, like Bebe Rexha, call him their favorite person in the industry. He is also very funny.

Bebe Rexha: Louis is simply the cutest and coolest of them all. Also the shiest. Really shy. He is really cool, has no ego, a chill person and I loved working with him, because he never made me feel uncomfortable in any way. He's always really good and nice to me.
Harry Styles: Louis is a great person to just sit and admire what he's like.

Liam Payne: I think when we were in the band, if there was ever, like, a problem band-wise, me and him would always try and figure it out together. So we often do that through life now as well.
Niall Horan: Louis, he knows that we all adore him and he's an extremely vital member of One Direction.
James Cordon: (talking about Louis' solo career) I feel very proud.

Louie: Louis, you're the reason my parents still have a daughter. (Louis: Awh, darling! *Gives her a massive hug*)