B.M.T.B. (Baby Mama Type Bitch)
A girl who used to date you and still talks to you like you owe her money for giving birth to a kid you never saw.
'You didn't even show up to the baby's first birthday! You're a total disappointment!'
'You didn't even buy me a present! You're a total loser!'
'You didn't even feed my kid! You're a total failure!'