sasaengEtymologyBorrowed from Korean 사생팬 (sasaengpaen), from 사생(私生) (sasaeng, “private life”) + 팬 (paen, “fan”).sasaeng means an extremely obsessive K-pop fan whose fixation on an idol is unhealthy and intrusive. Lexicurio rates it Rare gem — a strength score of 82 out of 100.nounAn extremely obsessive K-pop fan whose fixation on an idol is unhealthy and intrusive.“BTS sasaeng have obtained their schedules, passports and other personal information and offered to sell it online.”