blighter (n.)

• beachcomber
• beggar
• bum
• bummer
• caitiff
• derelict
• devil
• drifter
• drunkard
• good-for-naught
• good-for-nothing
• hobo
• lowlife
• stiff
• sundowner
• swagman
• tramp
• truant
• vagabond
• vagrant
• wastrel
• worm
• wretch