It’s a favored insult by those on the alt-right, and one increasingly adopted by anyone complaining about those who aren’t fans of the current U.S. President, but just how did “snowflake” become a bad thing? The fault, according to author Chuck Palahniuk, lies with his most famous novel.

“It does come from Fight Club,” the author told the Evening Standard, referencing the 1996 novel that became a cultural phenomenon when it was adapted into a 1999 movie starring Edward Norton and Brad Pitt. “There is a line [in the book], ‘You are not special. You are not a beautiful and unique snowflake.’”

Palahniuk said that the insult has become more popular in recent years because today’s kids are, well, pretty delicate snowflakes, in his view. “Every generation gets offended by different things but my friends who teach in high school tell me that their students are very easily offended,” he explained.

One group of people not traditionally considered easily offended are metal fans, yet even they are currently being called snowflakes by none other than the lead singer of Slayer.

The latest strange weather forecast came as the result of a Photoshopped picture of the band—often accused of having Nazi sympathizers or holding white supremacist views—with President Trump posted on the band’s official Instagram account last week. The original post was quickly deleted, unbeknownst to singer and bassist Tom Araya, but it reappeared on the account on Tuesday, with a new caption from Araya.

Fans are supporting Araya’s stance, if the comments on the new post are anything to go by. “When did Slayer fans become Snowflakes? [The] Slayer fans i remember pre Decade of Aggresion [sic]. That would kick you in the teeth as soon as look at you,” went one comment. “Those were the Slayer fans i loved. They werent offended by something so soft and trivial.”

See what you did, Tyler Durden?