Used to express contempt, scorn, or disapproval or to frighten or surprise another. v. booed, boo·ing, boos. To utter a boo.

What does booed up mean in texting?

The Brief: Boo'd up or booed up means to be in a romantic relationship.

Can I call my girlfriend boo?

According to the multiple slang dictionaries, boo is an affectionate term for referring to your significant other. Mostly, people call their boyfriends and girlfriends boo, especially on social media. However, sometimes this term can also be used for expressing endearment towards your family members and close friends.