Someone (mostly middle aged single women) who will look for "love" where ever they can such as bar,the beach,the men's public restroom,truck stops etc.
Man1:Look at that lady she is hitting on like every guy here.
Man2:What a LoveHound.
Man1:Its sad really.
derived from an advertising jingle the I Love Horses Magazine.
I Love Horses is a magazine for little girls, all about exciting equine stuff. You get a 'free gift' with each issue.