Little Tike
A girl who uses the smallest tampon size due to the fact that her vagina is tiny. One who does can be referred to as a "Little Tike".
See that girl? Yup, she has to be a Little Tike.
Mom, I need more tampons, but remember, I'm a Little Tike.
Mom, I need more tampons, but remember, I'm a Little Tike.