Lets do some quick math: 110 calories in a shot of gin. 12,000/110=109 shots. One shot=1.5 oz. 109*1.5=163.5 oz. There is 59.2 oz in a handle of liquor. That means your gf drank more than 2 and a half handles of gin in a night. I really hope you mean 12,000 calories in mixed drinks.