OOTD Meaning Uses Examples wikiHownighttime outfit heart symbolism is a phrase used to represent an outfit that is put on in the evening or for special occasions. represents love, emotion, and intimacy. Therefore, an ootn showcases a trendy and alluring attire that reflects the affection for clothing and embraces the nighttime vibe. Wearing an ootn can elevate one's confidence, make an impression, and exude sophistication and charm. Regardless of it's an glamorous dress or a chic suit, the ootn ensures that you catch everyone's attention and make a memorable impact at any night event.