(as) daft as a brush

(as) daft as a brush

slang Strange or silly. Primarily heard in UK. Quit being as daft as a brush—it's too dangerous to play on this busy street!
See also: brush, daft
Farlex Dictionary of Idioms.

daft as a brush

BRITISH
If someone is as daft as a brush, they are very silly or stupid. She was as daft as a brush. Couldn't say anything with any sense in it. Note: This expression may have come from `as soft as a brush', as both `soft' and `daft' can mean stupid. Alternatively, it could have come from a fuller version, `as daft as a brush without bristles'.
See also: brush, daft
Collins COBUILD Idioms Dictionary, 3rd ed.

(as) ˌdaft as a ˈbrush

(British English, spoken) (of a person) very silly
See also: brush, daft
Farlex Partner Idioms Dictionary
See also:
  • daft as a brush
  • daft
  • be as daft as a brush
  • brush over
  • have a brush with
  • have a brush with (something)
  • brush with death
  • run a brush through (one's) hair
  • brush down
  • Fuller Brush man