not a blind bit of (something)

not a blind bit of (something)

Not any amount of something. It makes not a blind bit of difference to me whether you do it now or this weekend—just get it done! I've been trying to show her I like her, but she hasn't paid any attention to my gestures—not a blind bit of notice.
See also: bit, blind, not, of
Farlex Dictionary of Idioms.

not a ˌblind bit of ˈnotice, ˈdifference, etc.

,

not the ˌblindest bit of ˈnotice, ˈdifference, etc.

(British English, spoken) no notice, difference, etc. at all: She didn’t take a blind bit of notice when I asked her to stop. She walked straight past me.
See also: bit, blind, not, of
Farlex Partner Idioms Dictionary
See also:
  • hope not
  • (I) hope not
  • not an iota
  • iota
  • not a bit of it
  • not a bit of it!
  • not for a second
  • not for a minute
  • not for a moment
  • ain't