펑펑 is an onomatopoeic and mimetic word that describes something happening in abundance or with a gushing sound, often associated with crying.
In this song, it's used to express the act of crying "profusely" or "in torrents." The singer regrets not having cried 펑펑 (cried her heart out) and expressed her feelings when she had the chance, making it a vivid and emotionally charged word that captures the song's theme of regret and longing.
Have you ever said something in a fight that you didn't mean? "펑펑 (peongpeong)" is a Korean sound word for crying your eyes out, and this song is all about the regret that comes after a breakup caused by foolish pride. The singer wishes they could turn back time, not to win the argument, but to do one simple thing: apologize and cry their heart out instead of letting their partner walk away.
This powerful ballad explores the painful silence after a fight, the what-ifs, and the heartbreaking realization that pride isn't worth losing someone you love. It's a story about missing someone so much that you revisit old memories, all while wishing you had just said, "I'm sorry, I miss you, I love you," before it was too late.