Is this the reason why i don't have a beer belly?

Ok I drink everysingle Friday and Saturday about 6-8 cans of beer Friday and same for Saturday and iv been soon this since I was 15 now I'm 18 an yet I don't have a belly at all I can nearly see my abs I train bodybuliding every Monday Tuesday and Thursday and got kickboxing wedsday so is this why I'm still in decent shape??so if I stopped drinking all together would I get in perfect shape fast??