do one's bit

Related to do one's bit: lay down the law

do (one's) bit

To contribute work to that of others in a group. If you don't do your bit with the slides, our presentation will never be finished on time.
See also: bit
Farlex Dictionary of Idioms.

do one's bit

Also, do one's part. Make an individual contribution to an overall effort. For example, You can always rely on Anne to do her bit, or I'm anxious to do my part as a board member. [Early 1900s]
See also: bit
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • do (one's) bit
  • do bit
  • do your bit
  • bit by bit
  • take a breath
  • in dribs and drabs
  • not one bit
  • not one little bit
  • be champing at the bit
  • chomp