Bolt over ride is a failure to feed. Brass over bolt is a failure to eject.
Specifically, bolt over ride is when the bolt slams home without stripping a round our of the mag. This is the typical malfunction induced when people don't get mags seated.
Ok, so we have multiple definitions for the same term. Good stuff.
When I despair, I remember that all through history the ways of truth and love have always won. There have been tyrants, and murderers, and for a time they can seem invincible, but in the end they always fall. Think of it--always.