Mastodon lets you set up custom timeline filters which automatically CW or completely hide posts with a specific word or phrase.

To add a filter:

1. Log in through your server’s website
2. Go to ⚙️ Preferences > Filters (On the mobile website click ⚙️ then ☰ then Filters
3. Click Add new filter button
4. Choose the settings you want, then click Save New Filter

There are nuances to using the filters, and I've done a list of tips about them at:

➡️ https://fedi.tips/filtering-your-timeline-to-hide-posts-on-mastodon/

#FediTips #Mastodon