Why do dads tell dad jokes? Because grandpa jokes fell asleep on the couch. For as long as there have been fathers, they have been purveying a distinct sort of wit, and this book is jammed with 800 eye-rollers, side-splitters, and knee-slappers, guaranteed to make you laugh (or sigh): "How do farmers keep track of their livestock? With a cowculator." Some even require a moment's thought—"A limbo champion walks into a bar. He's no longer the limbo champion."