noun, masculine/ˌbit͡ʃo ˈraɾo/plural: bichos raros
freak, oddball, weirdo
“Celebrado como provocador bicho raro, el músico vive una decadencia musical y personal después de las denuncias de acoso sexual de algunas de sus exparejas” — Having been acclaimed as a provocateur and weirdo, the musician [Marylin Manson] lives in musical and personal decline following the accusations of sexual harassment from some of his ex-partners
Literally, “strange bug”.