black mark

English

Noun

black mark (plural black marks)

1. (idiomatic) something that negatively affects someone's reputation
   • 2011 April 6, quoting Paul Simpson, “[Aimee Lewis Management after the sack]”, BBC Sport:

     "It taints your CV as people look at it and see what's gone on and it does put a bit of a black mark against you," says the man who, in 2006, was head hunted by Preston only for his tenure to be brought to a halt 17 months later.