Noun
The face of a horse.
A face that is long and ugly, with coarse features.
(by extension) Someone who is unattractive and has a horseface.
Source: en.wiktionary.orgThis is the core of the galaxy," Horseface said. "This is the very center of everything there is. A huge black hole eating up the galaxy. The end of everything. Clifford D. Simak