Be not much cop British informal slang
If you say that something or someone is not much cop, you mean that they are not of high quality, not useful or not very good.
I am not much cop at swimming.
This sequel of the book is not much cop.
Being not much cop as a flight attendant, so she ditched this job.
To be much less good than someone or something
The verb " be" must be conjugated according to its tense.
Cop was a slang term for "value" or "use" in the early twentieth century.
Daughter: So I really want all my friends to have a great time. I was thinking it would be a good idea to have some candy out on the tables for people to snack on.
Mother: Well, if you want them to really enjoy themselves, candy is dandy but liquor is quicker.