grey matter

Definition

Brains; a person's ability to think.

Example Sentences

• ""I'd better be putting my grey matter into that algebra instead of wasting it plotting for a party dress that I certainly can't get.""
• ""Inspector Pepys!" gasped Bernard Megger, swallowing between the words, "I shall remember you!" "You will be wasting grey matter!" replied the man."
• "How many phone numbers are stored in your grey matter?"