Bro, I have this same problem, and it sucks b/c underneath the facial flab, I have a chiseled face that chicks dig. I always lose these cuts when I gain weight... fat &/or muscle.
I'm willing to bet bottom dollar that you're bf% is kinda high. Furthermore, I'd venture to say that if you lose fat and get down to single digit bf%s, your face will lean up too. Do it. It'll be worth it. IMHO you prolly don't need the big guns (ie. yohimburn) just yet
good luck