A bogey that has broken free from the nostril and become stuck to the occupant of said bogey's face, which he or she is completely oblivious to.

The fun comes when you decide not to tell them that they have a zoidis.

A Bloomer is someone with a bright outlook on life who is optimistic in nature. Bloomer's frolic in every opportunity to be happy and try to make the most out of life. The opposite of a Bloomer is a Doomer. The term Bloomer originated specifically as a counter to the Doomer on sites especially like 4Chan.