Is there a way to block posts containing certain keywords from appearing in my feed?

I know how to block entire communities in Lemmy and that certainly helps to clean up my feed. However, there are certain topics I really don't want to see, even though they are posted about in communities I am otherwise interested in.

For instance, if I'm a member of a community about whales, but I really don't want to see posts containing the word narwhal. Is there a way to block those posts while allowing everything else posted in that community from showing up? Is there a way to block posts from any community containing that word?