Are drinking straws electrically conductive?

That depends on the substance of which the device is fabricated.
If it's made of metal, then your metal straw is electrically conductive.
If it's glass or paper, then it isn't.
That depends on the substance of which the device is fabricated.
If it's made of metal, then your metal straw is electrically conductive.
If it's glass or paper, then it isn't.