knuckle down to (do) (something)

knuckle down to (do) (something)

To begin to undertake something in a determined and focused matter. The whole team will need to knuckle down to this project if we want to get it done by April. I have to give her credit—she really knuckled down to finish her degree.
See also: down, knuckle
Farlex Dictionary of Idioms.
See also:
  • knuckle down
  • knuckle down to something
  • go the knuckle
  • knuckle
  • knuckle under
  • knuckle under, to
  • jump in feet first
  • jump in with both feet
  • jump in with both feet, to
  • dive in