Here are some key points to consider: Specific meaning from a girl: Girls use the term bae to refer to their boyfriend, girlfriend, or someone they deeply care about. It is a way of expressing love and affection. How girls use it: Girls may use bae in conversations with their friends, partners, or even in social media posts. It is a casual and lighthearted term that conveys closeness and intimacy. How to reply: If someone calls you bae , you can reply with a similar term of endearment like ... The meaning of BAE is sweetheart, baby. How to use bae in a sentence. Bae definition : an affectionate term used to address or refer to one’s girlfriend, boyfriend, spouse, etc... See examples of BAE used in a sentence. US informal a person's sweetheart or lover: often used as an affectionate term of address.... Click for English pronunciations, examples sentences, video.