[おんせんマーク, onsen ma-ku](n) (1) sign used to designate a hot springs (e.g. on a map); (2) (See 連込み宿, 逆さ海月・さかさくらげ) traditional style love hotel[Add to Longdo]
[さかさくらげ, sakasakurage](n) (because the Japanese hot spring symbol looks like an upside-down jellyfish) (See 連れ込み宿, 温泉マーク・2) traditional love hotel; traditional Japanese inn specially for couples[Add to Longdo]