TikTok reacts to viral ‘ rainbow kiss ’ trend with instant regret Spectrum Love Smooch Heart: Signifying glee and variance, the multihued embrace holds deeper significances. This enchanting fusion of colors and sentimental gesture conveys love deeply. Whether it represents anticipation, self-esteem, or togetherness, the rainbow kiss meaning stirs innermost beings. Embrace the vibrancy and express the affection with a delightful vibrant peck.