>>23314326 (OP)It’s referring to a person (particularly a guy) in a negative connotation. Kisama is often translated as 'bastard', same with yatsu.
>>23314879It's actually a dig at TV-Nihon fansubs who constantly left these words untranslated like in their original fansub of the Zeta movies.
It's how you'd describe someone who just jamasaru'd your keikaku