A very uncomfortablevagina wedgie (formally known as a twat wedgie, hence "twedgie") when a woman's underwear rides up the lips of her vagina and creates a vivid display for all the public to see and laugh at. Men with vaginas can get them too.
Where, when a girl is wearing a thong, the thong gets pulled up so it is wedged in between her butt cheeks. This is also known as a wedgie. It can be very painful.