Meaning: Individuals or animals that cause trouble for others.
Parasitic worms or insects. Wild mammals and birds that are believed to be harmful to crops, farm animals, or game, or that carry disease. People perceived as despicable and as causing problems for the rest of society.
Synonyms: Pests, parasites, insect, rodent, bastard, beast.
Use: Because Tina knows vermin are destroying her garden, she is going to place a wire fence around her crops.
Although I placed the lid on my trashcan, the vermin still scattered my garbage throughout the yard.