1. Boyfriend or girlfriend
2. Word used to scare people

boo is a term that is derived from the French word "beau" meaning beautiful. In 18th century England it meant an admirer, usually male. It made it's way into Afro-Caribean language perhaps through the French colonisation of some Caribean islands.

Now meaning girl or boyfriend

pet name: your hunny,sweety,baby.

1) Boyfriend or girlfriend. Term of endearment.

2) A loud, abrupt yell, meant to frighten someone.

3) A sound made to indicate disapproval, the opposite of "yay."

significant other, girlfriend,boyfriend,really close friend

1: An affectionate name for someone you love.

2: Something that a ghost says.

3: The short version of my cat's name, Boo-Boo.

A term of endearment, like baby.