B) One of the most annoying things a ditzy girlfriend will call her boyfriend.
C) Man or woman in the ghetto..
D) A word use to scare people
B) Girlfriend's Twitter: OMG I can't wait to see my boo!
Rest of the world: Shut the fuck up!
C) Dag, boo. You stoopid.
D) Booo! Did I get ya?
Now meaning girl or boyfriend