a word that is given to a lot of people or celebs just simply as an exaggeration, because someone has a slightly long or evan oval shaped face/big teeth/buck teeth/gummy teeth or a goofy smile (probably about half the population then) loads of celebs out there from eva longoria to christina aguilera, prince william or leona lewis have been called a horse. i don't think they are considered ugly to most people, nor are horses themselves.
1) A douche bag that stalks musicians, asks for photos and autographs, and then proceeds to talk shit about them either to their faces or behind their backs.
2) An ugly long faced douche bag with a big nose resembling a horse.
1) Guy 1: So Kristoffer does the most controversial and volatile thing anyone can do, and yells to Jerry Cantrell loudly and clearly for everyone to hear: "It should have been you instead of Layne!".
Guy 2: Wow, what a fucking Horse Face.
2) "Wow, that thug that had that 2 second spot on 30 Rock is a Horse Face!"