gold / gold or metal currency: coins, such as 大判 (ōban) or 小判 (koban) / short for 黄金色 (kogane iro, “gold”, the color)

Jin dynasty (1115–1234)

one of the five classical elements in traditional Chinese philosophy and medicine: see the "Wu Xing" entry on Wikipedia

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

see you later (said by a person staying, a stock phrase required by the Japanese etiquette, lit.: (after) going, come back)

行っていらっしゃい: alternative form of いってらっしゃい (itterasshai)

see you later (said by a person leaving, a stock phrase required by the Japanese etiquette, lit.: (after) going, I will come back)