Keywords: good (no good), unsatisfactory, good (not good)
Found 1 variant for this sign (click on video to enlarge):
As a Verb or Adjective
1. To be no good, or to be unsatisfactory.
1. Used alone to mean that you think something is not good at all and is unacceptable as it is. English = 'That's no good!', 'That's not good enough!'