Hot linking is prohibited on many message boards and blogs as it saps bandwidth from the home site serving the media file(s). It's illegality has yet to be tested.
In some instances hot linking is encouraged due to it's ability to draw eyes to the home site.
2 (v): To post a hotlink.
It's actual meaning is to directly link to an image or object from another website, which isn't the same at all.
or conversations such as:
B:"What's a hotlink?"
A:"You linked to another page"
B:"You mean Hyperlink?"
A:"No - hotlink"
B:"I posted a link to another page - that's not a hotlink!"
A: "Erm...Umm... This is my website! You're Banned!!"