When someone sneaks up behind you, grabs your trousers and / or your boxers, and pulls them down hard. Often to result in embarressment in front of an audience.
Often, the victim is whooshed and then given a wedgie to double the humiliation.
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.