not a bit of it!

not a bit of it

Not at all or in any way. Primarily heard in UK. A: "Do you mind if I tag along this afternoon?" B: "Not a bit!"
See also: bit, not, of
Farlex Dictionary of Idioms.

not a ˈbit of it!

(British English, informal) used for saying that something that you had expected to happen did not happen: You’d think he’d be tired after the journey but not a bit of it! I thought she would be glad to see him but not a bit of it — she made some excuse and left as soon as he got here.
See also: bit, not, of
Farlex Partner Idioms Dictionary
See also:
  • not a bit of it
  • not one bit
  • not one little bit
  • do (one's) bit
  • do bit
  • do one's bit
  • do your bit
  • choice bit of calico
  • too
  • bit by bit