1. The act of forgetting where you came from for good reason.
2. The act of being ungrateful when being presented with gifts you couldnt purchase on your own accord, mostly because of earnings structure that is paycheck to paycheck coupled with insufficient savings.
After I had put those fancy alloy wheels on her ragged car she had suddenly caught Camdenmnesia, which was bad in her case because I came over to her house and took them back.