okay gents - this is where all the persons of a certain persuasion hang out... and while I rarely am in the mood, I am right now, so here ah am.

I want to set up an RSS feed that auto-marks as "read" everything that doesn't have a certain term in it.
For example (purely hypothetical, right?)

I want my RSS feed to notify me for every Bonktown item that has the word "Reynolds" or "RXS" comes up... but not otherwise.
How can an innocent, inexperienced fellow to make this happen?