The dirtie is the item within the gertie, the gertie being pants, or other types of clothing worn on the legs. The dirtie can be big or small, depending on the person, and depending on the gertie they are wearing. A dirtie gertie may also be a person who is being homosexual in various ways, or who carries the name David. Do not be mean to a dirtie gertie, for they, yet small and weak, will one day hurt your dirtie in ways your gertie cannot explain.
That dirtie gertie punched me in the dirtie so i took his gertie and wrapped it around his dirtie til he lost circulation in his dirtie. Then he ripped my gertie so i called him a dirtie nergie.