While getting a handie from your girlfriend while laying on your back inverted (like being on a decline bench at the gym) and she has you edged to the point of cumming but immediately water boards you and you don't know if you are gonna cum or die.

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.