WCheese is a general term used to describe something (usually when you cannot think of anything else). It can also be used to enhance something, to greet someone, or to insult someone.
Gimme dat wcheese. You smell like wcheese. What up wcheese? She was all like wcheese.
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.