na-adjective
ugly and creepy; gross-looking
Slang blend of ブサイク (ugly) and キモい (creepy/gross). Used mainly in casual, often online, speech to describe someone or something both unattractive and off-putting.
See also: キモい
あのキャラ、ブサキモだけどなんか人気あるよね。
That character is ugly and creepy, but somehow popular, isn't it?
ブサキモな写真がネットで拡散された。
An ugly and creepy photo was spread online.