We used to play a tune called "Greasy Coat", which we originally were told was about alcohol, but which someone later told me (I guess when he thought I was old enough) that it was another maidenhead reference.

I don't drink and I don't smoke,
I stay away from the greasy coat.

I don't smoke and I don't chew,
I stay away from the girls that do.



So maybe it was the MAN who was the virgin in this one?