Bluender

Bluender: verb. To make a mistake, whether grave or innocuous, due to or affecting something blue. An example fitting both these requirements would be confusing a grape for a blueberry and proceeding to eat the latter on account of this mistake. An example satisfying only the first of these requirements would be confusing a grape for a blueberry and making a decision (unconnected to this blunder, of course) not to eat either. An example satisfying only the latter requirement would be choosing the wrong pathway and stepping on a blueberry on the account of the mistake.