"Where's your boo?" It is a question about a romantic partner. Boo is a term of endearment, often used in African American Vernacular English and Southern dialects. It is warm and informal. It can refer to a boyfriend, girlfriend, or spouse. It is not usually used for casual dates. A boo is someone special.

The word is also a sound. A ghost says "boo." A crowd says "boo" to show disapproval. Context decides. If you are at a haunted house, "boo" is scary. If you are at a comedy club, "boo" is bad. If you are texting your partner, "boo" is sweet. The spelling is the same. The meaning is not.

Related terms

• Bae: before anyone else, similar.
• Honey: warm, domestic.
• Sweetheart: affectionate, slightly old-fashioned.
• Paramour: formal, literary, often illicit.

Boo is not gender-specific. Anyone can have a boo. It is also used as a nickname. "Hey boo, how was your day?" The tone is soft. It is not for professional settings. It is for people who know each other well. The word is small and round. It fits in a whisper.