1. The thing you wear under your clothes 2. To understand something 3. To rip off someone's underwear as a sexual gesture.
1. Why is your underwear all over the floor?
2. I don't underwear what you're saying.
3. My boyfriend and I made out by the food table then we went for it and underweared eachother.
The undergarments a guy wears just about anytime other then when hes knows hes about to score. They are barely holding on to life and could only be identified as underwear by either the owner or a person with a creative mind. Unlike famine underwear, men will wear this for an indefinite period of time until said garment vaporizes.