Like a normal backslap, only harder, and thus more painful.

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.

When a korean guy is sodomisind another korean guy and just before he cums he takes out his cock and slaps it all over the other ones back.