Can you tell me whether yours does this, or is ours just a particularly foul mouthed model?
We have two Alexas, one upstairs one down and a selection of Philips Hue bulbs. The two lamps in the sitting room are called "sitting room" or they have an individual name on the off chance we ever need to use them separately.
DH cannot work Alexa properly mainly because he calls her Siri and in a fit of impotent rage one day, told her to "turn the fucking lights off", to which she turned the sitting room lights off 
DH assumed I had set them as a joke, I hadn't. I then assumed teen DS had done it- he hadn't but is gutted that he didn't think of it. They are not called "fucking lights" on either the Alexa app or the Hue app.
Tbh I'm childish enough to find it amusing and frequently refer to them as "the fucking lights" when I'm alone in the house but I wondered if ours was uniquely coarse?
So if you have a similar set up, could you ask yours and see what she says?!