When you put a pair of pants on in a hurry over a shirt which is then tucked into the pants. Sometimes the bottom corner of the shirt sticks through your fly, which is called a T-shirt willy.
Nickname for someone who is white trash. Has been known to recieve rickjobs, wear sleeveless shirts at all times, and finger their own bellybutton as an act of self-gratification
Man that fat girl wont stop trying to dance with me- send in the Willy T!