To describe someone that acts like a baby (the drinker of milk) e.g Someone that cannot withstand banter or other teasing.
Person 1: "You're gay."
Person 2: Not needed, why are you being like this *boohoo*
Person 1: What a milk!
邮件由 firstname.lastname@example.org 发出。我们决不会发送垃圾邮件。