Eretiquette, or erection etiquette, is the customary code of polite erection-related behavior that men should follow (i.e. when dancing, hugging, etc).
Girl: "Oh man, that guy showed poor eretiquette; I could feel his junk from a mile away on the dance floor!"
Guy: "What's wrong?"
Girl: "Why are you sticking your bum out like that when you hug me?"
Guy: "I'm just following proper eretiquette. I barely know you and don't want to accidentally poke you."
Girl: "You are such a wonderful gentleman."
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.