Spite-package

After the course of a breakup the other person may demand you send them small inexpensive trinkets of the relationship back. For example: soap, a soap dispenser, cheap shampoo, floss. It's even further enhanced when the package must be mailed due to a long distance breakup. Usually the case when the other person is going to great lengths make the other miserable.

Erin: you better send me the rest of my bathroom items or I will write a letter to your mom.
Dave: whatever
Erin: what do you mean whatever?!
Dave: mailed your spite-package, that'll be $10.99 for shipping.