~党 (faction / X-lover suffix)

The Sino-Japanese suffix ~党 ('party, faction, camp') used idiomatically for taste preferences or lifestyle identifications: コーヒー党 (coffee lover), 紅茶党 (tea person), 甘党 (sweet-tooth), 辛党 (savory or alcohol lover). Originally a political-party suffix, now extended to mean 'X-camp' or 'X-devotee.'