Howdy from a fellow Coloradoan!
You want 2" off your waist line? In 2-3 weeks? That's a tall order and you'd better be at the gym 24/7 for the next two weeks!
You can't target your belly and love handles for weight loss, you lose all over and I'm going to guess that for 2" off your waist, you're going to have to drop 25lbs or more. You might say you don't have any fat on the rest of your body, but you'd be amazed at how much comes off. I've pretty much have gone through this and as a comparison, I've dropped about 15lbs for each inch gone from my waist. I'm 6'2" and was at 225lbs with a 36" pant size, at 200lbs I was around a 34" waist and now at 185lbs I'm at 33". It would be unhealthy to try to lose that much weight in that amount of time and it'd probably be next to impossible to actually do it. A safe amount might be around 5-10lbs, 10 is pushing it though, you'd have to come close to starving yourself and it'd probably come right back the minute you eased up on your diet/routine after your 'gathering'. 10 pounds isn't going to do much for your belly profile though, sorry to say. I hope you're not discouraged at this point.
If you are just starting out at the gym, work towards 1 hour of cardio 3-4 days a week, throw in some strength training too. This is general, as most people starting out can't or won't try for more than this and this is a good level to lose around 1-2 pounds a week coupled with a clean diet. If you and your body can handle it right now for the next 2-3 weeks, go to the gym
every day and do an hour of cardio see where that takes you. Running is great cardio and will produce the best results for short term goals.
Search this forum for posts on diet, there's also plenty of stuff on the web to help you clean up your diet. For the short term that you're looking at, you probably already have a good idea on what to do, cut back on portion size, cut back/out fatty fast food, cut out sugary drinks like pop, cut out all sugar that you add to anything.
Don't set a 2" goal off your waist in 2 weeks, your goal should be to get to the gym every day and do what you can between now and then. You'll probably burn out at this level, so after your gathering ease up on the intensity and settle in on a long term routine. All this assumes you are healthy enough to do it. Talk to a doctor first if you have any serious concerns about your ability. Good luck!