Dude on the right has his finger on the trigger of that polymer80 glock clone, so hopefully it isn't loaded...
I noticed this immediately as well. Hit a bump in the road and they get a nice Pulp Fiction reenactment.
What does this mean “trigger warning?” Seems to have some political backlash but I never understood the original reference.
The term “trigger” in this context was initially used by mental health professionals in the context of setting off post-traumatic stress. I believe this here is an example of this primary (non-problematic) usage.
It then got politicized and associated with “snowflakes”, and endlessly mocked and memed. Actually may be that more people know the word now from right-wing trash talk than from mental health concerns.