[SmG HelHeim]

A sport is something with physical activity, and no I don't really count clicking on a mouse to be a sport

But doesn't using your finger to click on a mouse count as doing something physical?

In a way, I kinda agree with Cammie.
Sport by definition: an activity involving physical exertion and skill in which an individual or team competes against another or others for entertainment.
Exertion meaning a physical effort. Clicking your finger is not a physical effort. 
I would not see chess or dog race as a sport either, because both don't require physical effort.