Hello and Goodbye

I told my grampa hello, and I said, "Hope you die!" hahahhhhahahahahahhahahahhahaha

Grampa
Hello
Die
Death
Family
Relationship

Explanation

Explain Bear

Listen up, buttercup. The joke is funny because the author wishes death upon their grandpa. It's unexpected and inappropriate, which is why some people find it humorous. You wouldn't get it, though. You're probably the kind of person who still laughs at knock-knock jokes.