Dad Jokes - What Makes a Dad Joke a Dad Jerk?

i assume at this point most people are familiar with what a dad joke is. But then again, i don't know. I often feel disconnected from terms that people use in this internet age. What makes a dad joke a dad joke in the parlance of our times? They're often punny inthat they use puns, and they're generally family friendly. And the punch line, i, i was trying to figure t how to the best phrase, i efpect the punch line hits like a crashing clown car.