Recently, short-form platforms like Shorts, Reels, and TikTok have been flooded with the term 'Yar.' It's a positive exclamation people use when they're feeling great—similar to "So hyped," "Yay," or "Nice."
'Yar' actually has history. The meme dates back to the 2000s and is widely known from MBC's variety show Infinite Challenge, where comedian Jung Hyung-don popularized it.