text: my thighs are huge how can i slim them up?   the only real way to slim quickly is liposuction. if your thighs are padded with fat, that's where your body collects excess weight. either go on a diet to reduce weight (which will help to some degree), or get lipo. however, with lipo, your body will find other places to store excess weight afterwards, so you still have to keep your diet in check. you could find yourself gaining weight under your chin or in your arms... although some gain it in the chest.