a bad lot
A person or group of people typified by immoral, illegal, or illicit behavior, which is often seen as being corruptive or destructive to others. That George fellow is a bad lot. I heard he was arrested just last year for robbing a convenience store for drug money. I fell in with a bad lot after high school and got in a lot of trouble, but I've cleaned up my act now.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
a bad ˈlot(old-fashioned, British English) a person who is dishonest: I’m not surprised. I always said he was a bad lot, didn’t I?
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