It's generic terminology to refer to any form of extremist implementation / interpretation of islamic theology, specifically with religiously inspired harmfull acts. Like acts of oppression (by indeed forcing women to cover up, not attend schools, don't drive), to the even more extreme bombings, executions, terrorist attacks etc.
In that context, it isn't really an islamic term. More like terms adopted by the west to refer to such groups and organizations.
I'm aware that "jihad" doesn't necessarily mean the same thing in islamic theory. It's one of those words that if you ask X amount of muslims what it meas, you'll get multiple different answers.