Blighter
Part of speech: noun
Definition: One who blights An unnamed person, usually male, often contemptuously.
Pest
Part of speech: noun
Definition: A plague, pestilence, epidemicAn annoying, harmful, often destructive creature.An annoying person.Someone with poor social discipline who continually bothers disinterested women.
Example sentence: Show me a friend in need and I'll show you a pest.