a black mark
a black mark
A long-lasting negative impact of a mistake. Jerry's speeding ticket was a black mark on his driving record that prevented him from getting a job as a delivery man.
black mark
An indication of censure or failure, as in If you refuse to work late, won't that be a black mark against you? This phrase alludes to a literal black mark, such as a cross, that was put next to a person's name, indicating that he or she had incurred a rebuke or penalty of some kind. [Mid-1800s]
a black mark
COMMON If you get a black mark, people form a bad opinion of you as a result of something that you have done. Any complaints to the boss and you got a black mark straight away. I drive a big car so that's another black mark against me as far as Amy is concerned. Note: This expression may refer to a practice in schools in the past. If children behaved badly, the teacher put black marks against their names on a list.