What does a yellow star on twitter mean?

I was looking through some of my old tweets and one has a yellow star beside it. What does this mean? I clicked it once and a garbage can showed up underneath it. I clicked it again and it turned white.What does a yellow star on twitter mean?The yellow stars are tweets that you've added as your favorite tweets, for whatever reason. They were funny, informative, etc. In your case, apparently accidental. :) The garbage can is for you to delete that tweet..