The drugrug is culturally and texturally similar to a poncho, but usually has sleeves, a hood, and a pocket, in which marijuana and other substances may be stashed (hence the name "drugrug". Drug-rugs are popular among hippies and tourists in Mexico, and are extremely comfortable and durable.
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.