A man or woman who check out people who aren't attractive. Likes checking out small boobs and flat asses.
Sam: Oh my god look at Julia's ass
Andrew: Yo that chick ain't even hot.
Sam: She has an ass
Andrew: No she doesn't
John: She doesn't, Sam.
Andrew: Dude you're such a horn dog.
Andrew: Yo that chick ain't even hot.
Sam: She has an ass
Andrew: No she doesn't
John: She doesn't, Sam.
Andrew: Dude you're such a horn dog.
by Musicgod14 December 08, 2013
When someone is consistently asking for nude and or inappropriate pictures usually on Snapchat. Most commonly boys aged 13-18 will be called a horn dog because of there constant demand for nude pictures
by Nelly1345 July 01, 2018
A horn dog is someone who has colored hair(typically purple) and is always horny. Although, they will oftenly share with people they are a horn dog for.
by BigManWhoCame November 15, 2021