Meaning

1 senses
  1. (idiomatic, plural, plural only)Brains; a person's ability to think, especially referring to intelligence.

Origin

Compare grey matter.

Compare grey matter.

Wiktionary, CC BY-SA 4.0 · source

Forms

plural: grey cellses

See also

neighbours in the dictionary
grey cells — meaning, examples, forms, synonyms | Krumeto