Take a book, open it to any page and begin reading out loud, replacing every word beginning with a 'b' with 'bangers' and every word beginning with an 'm' with 'mash'. Everyone else must listen carefully and when the reader makes a mistake (ie reads any other word beginning with 'b' or 'm') the book gets passed along. If the game gets to easy, try adding in other words, such as 'ketchup' or 'peas'. The winner is the first to get to say "bangers and mash".