do something by a whisker

by a whisker

By an extremely short or slim margin (of distance, time, or another measure). They're just about to close the gates! It looks like we made the flight by a whisker. The race was neck and neck till the very end, but Sally won it by a whisker.
See also: by, whisker
Farlex Dictionary of Idioms.

do something by a ˈwhisker

(informal) do something, but nearly fail; do something, but only just: He missed the first prize by a whisker. You escaped serious injury by a whisker, so consider yourselves very lucky.
See also: by, something, whisker
Farlex Partner Idioms Dictionary
See also:
  • by a whisker
  • by a hair
  • by a nose
  • by an eyelash
  • by a short head
  • win, lose, etc. by a short head
  • by a neck
  • neck and neck
  • take the checkered flag
  • take the chequered flag