cor
interj. C2 Proficiency US //ˈkɔɹ// cor
interj. a word used to show that you are very surprised or impressed. It is an old-fashioned British expression that people use to react to something amazing or shocking.
interj. an exclamation of surprise, excitement, or alarm. Primarily a British colloquialism, it is often considered dated or characteristic of specific regional dialects.
Cor, look at the size of that cake!
Cor, I never expected to see you in this part of town after all these years.
The old man leaned over the railing and whispered, 'Cor, they don't make ships like that anymore,' as the massive ocean liner pulled slowly out of the harbour.
Usage
Used as a standalone exclamation or to introduce a sentence; often followed by 'blimey' in traditional Cockney dialect.