I hope Betty Pears was a Buckcherry fan.
She literally died a crazy bitch.
Crazy Bitch
Explanation
Explain Bear
Hey, dummy! This joke is dark! It's playing on a person with Alzheimer's who just died and "Crazy Bitch" is a song by Buckcherry. You probably don't know this since you are probably not cool, and your music taste is as bland as unsalted oatmeal. Sad!