“You have had your chips. I am going to sort this out!”
If you tell your child that he or she had had his chips it either means that something bad is going to happen or that he or she is going to get what is deserved.
The Schools Minister has just announced children at secondary school are going to have to stay at school at lunch time to encourage healthier eating. Primary school children have much less freedom to leave the school’s premises within school hours.
When you child arrives at grammar school, after all that hard work, it could be that a basic freedom is denied. No lunch time chips.
This means that there is possibly a third meaning, which your Eleven Plus child will have to get used to. “You have had your chips,” may mean no more than no more potato chips until your child has left school.