Chammi
Chammi is a colloquial term primarily used in South Korea to refer to a close friend or buddy. It often implies a relationship of camaraderie and affection. The word is generally used informally among peers, particularly within younger generations. Its usage can be considered akin to terms like "pal," "mate," or "bro" in English-speaking contexts. While not a formal or dictionary-defined term, it's prevalence in everyday conversation, particularly in casual settings and online communication, makes it a recognizable expression of friendship.