Hitler-effect 

1) A extreme rise and fall in power
2) A dictator

Man 1: Remember Trump when he was president?
Man 2: Welp, that's the Hitler-effect for you.

Hitler-effect by Blitz_ April 12, 2021

Springtime for Hitler effect 

A seemingly paradoxical situation that occurs when all of the individual components of a movie (acting, dialogue, editing, etc.) are utterly terrible, yet the movie is nevertheless enjoyable. Most often it applies to a movie that while not meant to be a comedy, is nevertheless hilarious to watch.

Named for 'Springtime for Hitler' from the film 'The Producers'.

'Shark Attack 3' belongs on IMDB's worst 100 list, but because of the Springtime for Hitler effect, many people actually enjoy watching it.

Springtime for Hitler effect by German Juggernaut September 1, 2009

Dunning-Hitler effect 

The tendency for countries that believe they are immune to fascism to be especially susceptible to its rise.

The popularity of Geert Wilders is an example of the Dunning-Hitler effect in its early stages.

Donald Trump's presidency is an example of the Dunning-Hitler effect.

Dunning-Hitler effect by Aunt Tifa Lockhart September 29, 2017

The Hitler Effect 

Announcing information to the general public or a group, then not telling them the specific information ie:

'Hey me and Sally have GREAT news!'
'What is it?'
'Oh we're only telling certain people'

'That'sthe Hitler Effect!'

The Hitler Effect by The master June 22, 2014