It means long, long length. It is also a French surname. Last name of a great French cyclist, named Jeannie Longo (now married Jeannie Longo-Ciprelli). It was known as the "Superlongo". He competed in Track, Route and Mountain Cycling. He won four Olympic medals and won 13 world championships.
* Only one "like" per meaning and day, the more "likes" the meaning will appear higher in the list