Slang Insult Labels
These are often cruel labels but for some people, hey, they fit appropriately. But notice the male ones typically refer to character or morals while the female ones refer appearance or sexuality.
Male Labels
Cad
Blaggard
Wolf
Bounder
Dud
Dip
Dolt
Dope
Dork
Dolt
Dunce
Dink
Doofus
Drip
Viper
Bonehead
Hooligan
Bolter
Sap
Slug
Palooka
Stiff
Teddy
Nancy
Card
Wus
Heal
Rascal
Scamp
Lout
Schmuck
Schlep
Soundrel
Rapscallion
Roustabout
Geek
Wanker
Wonk
Twerp
Wad
Nerd
Putz
Scalawag
Galoot
Swell
Masher
Female Labels
Siren
Harlot
Strumpet
Wench
Slut
Tramp
Lush
Trollop
Jezebel
Whore
Dame
Chick
Broad
Tart
Prude
Wastrel
Waif
Prig
Dingbat
Minx
Vixen
Skirt
Hole
Bird
Rack
Bitch
Floozie
Cunt
Spinster
Doll