"18" by EXES reflects on the nostalgic longing for a past relationship and the bittersweet memories associated with it. The song captures the emotions of the singer, who late at night, finds it difficult to forget about their former lover. The lyrics describe the taste of cigarettes and whiskey lips, symbolizing the intoxicating and addictive nature of their relationship. The singer reminisces about their carefree and wild days of being young and in love, expressing a desire to relive those moments. They question if their former partner still thinks about them and misses them the way they do. The protagonist contemplates meeting up again and revisiting the places where they used to spend time together, hoping to recreate the feelings they once shared. Despite recognizing that their relationship may have only been fleeting ("I know you were just a glimmer"), the singer can't help but wonder if their ex ever thinks about the days they spent together. The song ultimately conveys a longing to reconnect and recapture the innocence and intensity of their youth.
