When boys are unorganised and can't make up their minds on if they wanna fuck you or date you. They use terms like this to stay out of trouble . They haven't said yes or no.

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.