The purpose of this simile is to give compares but it is also length. The information concerns the length of a good speech. This simile information the interesting of a speech to the length of a woman’s skirt: long enough to cover the subject (the important things) but short enough to be fun. It is fun because it compares two very different things but the comparison is true. The total effect is to get a better understanding from both the picture image and the two points of view.