**fascist**: 1. Someone who believes in a totalitarian state rule by a [supreme leader] (dictator) who controls everything possible and treats people harshly -- to gain [the leader's] own success,* to [foment] an aggressive military nationalism, and to promote a Social Darwinist belief that hard life strengthens the state by [weeding out] the weak.
2. A lesser authority (corporation, mayor, cop, boss, parent) who legally issues harsh, burdensome, [micro-managing], insensitive, or uncaring orders -- especially when they know, or should know, that their goals can be accomplished with more [autonomy] and much less hardship or distress.
3. A harsh and probably murderous kind of dictator; a "[fascist] dictator" as opposed to a "benign dictator".
4. If applied unfairly, a parent authority who is doing their job within reason, but their teen either doesn't agree with their agenda (10 PM curfew to help perform well in morning school), or is insincerely asserting their parent to be a harsh [disciplinarian], in order to bond socially with friends.
5. If capitalized, is the name of the historic Italian [Fascist] political party. [Benito Mussolini] ([Il Duce] - "The Leader") was the Fascist founder and Prime Minister from 1922 to 1943, who built a [cult of personality] around himself using false media propaganda that he was always right, killed those relatively few unbrainwashed who opposed him, and unified Italy for an incompetent war to [retake] much of the old Roman empire. Apologists encapsulated their approval of his social control-freakery in the saying, "Il Duce made the trains run on time".
Background:
"fascist" connotates an official form of antisocial behavior, if society is understood to have valid comfort needs not met by a harsh authoritarian work ethic or supervision style.
