attraction to ugly people; person who prefers ugly partners
Slang term, often used self-deprecatingly or humorously. Can refer to the preference itself or a person with that preference. Compare ビー専 (attraction to beautiful people).
See also: Ｂ専
He says himself that he's into ugly people.
My friend who's into ugly people says personality matters more than looks.
Compound of ブス (slang for 'ugly woman') and 専, an abbreviation of 専門 (specialty, one's area of focus).