Definition of mum jokes? Like dad jokes but a lot smarter. Over 500 eye-rollingly funny, family-friendly, witty jokes, ready to bring out at any occasion.Over 500 eye-rolling, hilarious jokes, ready to bring out on any occasion.We all know about dad jokes but isn't mum just as funny? Absolutely, she is. She's running circles around those lame dad jokes.Jessica Rowe has compiled an awesome collection of quick and funny jokes, already road-tested and 100% guaranteed to embarrass anyone's kids.An ideal present for any mum, any time.