those two are very thick
Preserved but no longer current.
Meaning · English
They are very good friends, on excellent terms with one another. As thick as thieves is a similar saying.
Era: ca. 1898 (Victorian)
Sources & notes
Reproduced from Brewer’s Dictionary of Phrase and Fable (1898 edition, public domain; archive.org, retrieved 2026-07-31; OCR text, minor errors possible). Reflects the scholarship and attitudes of its era.
Common questions
What does “those two are very thick” mean?
They are very good friends, on excellent terms with one another. As thick as thieves is a similar saying.
Is “those two are very thick” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.