JAQing

https://rationalwiki.org/wiki/Just_asking_questions first hit (on google ;) ) which has a good explanation.

E: And I don't meant this post as a 'just fucking google it' or 'educate yourself' (well a little bit) but more to show there is more to this accusation of JAQing than just some way to shut you down. The method is used by bad faith actors a lot, so it is a pattern of behavior a lot of people react negatively too. So, assuming you are acting in good faith, it is a good way to learn why people are reacting to you like you are a bit of an bad faith actor. And if you are a bad faith actor, I only wasted a little bit of my time typing this out so nothing really lost.

Short for Just Asking Questions. Where people ask loaded questions that act as a veneer to their actual statements. If you want to accuse them of the fact they are talking shit, they'll say they're "just skeptical" and "asking questions"