How can i loose a bit of weight by next Thursday?

Im not fat but im not skinny either. Me and a group of my friends are going to my best friends hen night next weekend and its cow girl theamed. Where all wearing matching outfits. Cow print bra and tutu. Im not fat but i do have big love handels and fat thighs. I miss breakfast and lunch and usaly eat tea if not have snack. How could i loose some weight by then exersize ect...?