Maybe another commonly used Acronym 'Jockey', which would be similar to 'Cowgirl'.

From my understanding 'Cowgirl position' is where the WL is kneeling on your staff, whereas a 'Jockey position' is where the WL is in an upright position on her feet and ridding you like a Jockey does in the stirrups on a horse. Absolutely love this 'Acronym' page, its helped out a lot.