1. This occurs when a person walking around with a toddler riding 'horse-back' on his/her shoulders drops the baby. It is especially applicable in situations where the drop came about under humorous circumstances.
2. This term can also be used to describe the exchange of "toddler for ransom" in the case of kidnapping.
1. "Bob jerked violently when he felt his niece's poo run down his neck, thus resulting in a baby drop."
2. "The kidnappers instructed Tom to meet at the old Town Hall for the baby drop."