Another way to say baby (as in the small child) and you say it to try and be funny
Oh mah gawd Becky, there is a BUBEH over there
Someone who you think is your friend, but they have a different agenda. They use your words against you and will try to hurt you and your reputation. Don't ever trust them if they try to apologize for their actions.
"You know that girl, Sam? She was my backstabbing BFF, she turned all of my 'friends' against me."