A person who's "in love" with themselves, hence the similarity to the word "love". This person care's a lot about their physical appearance and loves to take photos of themselves, by themselves.
Also known as a type of photo in which, the person taking the photo is also the only person inside the photo. Better Luvos tend to not get any of their hand, forearm or shoulder into the picture.
Look at that person taking luvo's of himself/herself with his/her cell phone.