What don't you like about it? Chicken dinner describes it beautifully... Chicken = Coward Chicken dinner = Winner Now I've actually broken it down I think you might be right. Absolute shite it is!
"Yankee" is one of those expressions like "OK" that nobody really knows the origin of. Another theory is that it comes from the Dutch Jan-Kees or Janneke (little John) - which is just too dull to be accepted, even if it's true.