Your TFF Ratio (Twitter Follower-Friend Ratio) is the ratio of your followers to friends (or people who you follow). The higher the ratio, the more Twitter heat you pack.
A ratio of less than 1.0 indicates that you are seeking knowledge (and Twitter Friends), but not getting much Twitter Love in return. Check your pulse, you might be a bot.
A ratio of around 1.0 means you are respected among your peers. Many people think that a ratio of around 1.0 is the best - you're listening and being listened to.
A ratio of 2.0 or above shows that you are a popular person and people want to hear what you have to say. You might be a thought leader in your community.
A TFF Ratio 10 or higher indicates that you're either a Rock Star in your field or you are an elitist and you cannot be bothered by Twitter's mindless chatter. You like to hear yourself talk. Luckily others like to hear you talk, too. You may be an ass.