Funnily enough, I wrote about the overuse of the word gaslight in one of my articles last year. It's one of the go-to positions for people who don't really want to engage in an argument.

https://medium.com/lucid-nightmare/gaslight-gaslight-why-am-i-gaslit-everywhere-i-go-c9280a0a3b37

I strongly suspect you're not going to click and read it - but here's one of the pertinent highlights:

The word 'Gaslight' remained in relative psychological obscurity until about 2016 before some idiot dusted it off and decided it was a good catch-all term for everything between ‘I don’t have to listen to you’ and ‘How dare you question my perception of reality!’