A hostile takeover has a specific meaning. It's simply a takeover attempt where a buyer approaches shareholders instead of the company's management, this is usually (if not always) because the latter fails. And it always comes with a premium and drama, precisely because it goes against the wishes of the management of a company. And the premium is also logical because presumably shareholders of a company "believe" in that company, and an outsider now wants to take it over. A good example [1] is when Inbev (massive multinational beer company) purchased Anheuser-Busch (Budweiser). It made the purchase of Twitter look downright cordial, but was probably outside of most of our bubbles.

[1] - https://en.wikipedia.org/wiki/Anheuser-Busch#Acquisition_by_...