ブラウザの設定でJava Scriptの使用を有効にしてご利用ください。
出典:Wiktionary
snowdrop + -er. The term was common within British law enforcement before the 1980s to denote someone who steals ladies' underwear from washing lines often for masturbatory purposes.
snowdropper (複数形 snowdroppers)
snowdropper