Kim's Convenience Season 1 Episode 7 [Vocabulary]

Ins Choi

"Jung's high school number one hunny bun-bun."

忠 zhōng loyal; devoted; honest

铁 tiě iron (metal); arms; weapons; hard; strong; violent; unshakeable; determined; close; tight (slang); (Chinese surname)

老铁 lǎotiě (slang) very close friend; bro

上床 shàngchuáng to go to bed; (coll.) to have sex