Stands for very fucking good. Pretty much self explanatory. The F is for extra emphasis on the good part, or to express anger, agony or put a stopper on a cocky bragger's mouth.
Marvin said, "I got top marks in the SATs!" Sarah retorted, "Vfg."
The ability girls and women have developed to hold several items at once in one hand. The skill has been developed due to the lack of pockets in women's clothing.
I thought she'd need multiple trips to carry her phone, keys, wallet, and Starbucks to her car since she needed the other hand to open the door, but she used her impressive girl grip to carry everything in one hand.