That's what the finger test is good for. And if you can smell it from just standing near her, then it's time to buy her some....what is that stuff...Midsummer's Eve? Douche.
No offence to the ladies...
but that has to be one of the worst smells possible...
recall my early university days when I used to bus it...
one morn got on and there was this friggin' disgusting fish stank...
apparently it was one of the female passengers.