Someone who is sexual with everything. Phi (Φ) is a variable and therefore can be replaced with anything, hence a phisexual is someone who is sexual with any and everything.

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.