I'm not sayin', I'm just sayin'"- You use it when you are trying to explain yourself. For example, if someone was wearing a smelly shirt and you said, "Hey, that's a smelly shirt and they gave you a look, like, hey what are you talking about. Then you could say, "I'm not saying it stinks super bad, like it is hurting my nose, or I can hardly breathe when I stand even kind of close to you, or it might even be an ugly shirt, but my eyes are watering so bad because of the stench that I can't tell if it just smells super bad or if it is ugly too…I'm just saying, you might want to change you shirt before someone else smells it. To use the quote, you could shorten your reply by saying, "I'm not saying, I'm just saying you might want to change your shirt before someone else smells it. Just trying to be a friend.
