Origin not well remembered but it is suspected to be a deviation of 'pod washing'. A pod being an ensuite shower room. Now taken to mean 'a person who is a complete wanker'. See also podwodgery

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.