Someone who tends to pull dick moves.
One who is a jerk or dirt bag.

A total f*cking idiot

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.

a reference to any old person especially an old chinese person.

A unclean person. A person with bad hygiene.