trigger warning

[trig-er wawr-ning]

noun

1. a stated warning that the content of the immediately following text, video, etc., may cause distressing psychological or physiological reactions, especially in people who have previously experienced a related trauma: TW

   The header line of the blog post contains a trigger warning for rape.

Word History and Origins

Origin of trigger warning¹

First recorded in 1990–95; trigger ( def. ) (in the sense “something that stimulates or initiates”)