do bit

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

do a bit

1. To do only a small amount of something. I was only able to do a bit of cleaning before your mother called—that's why the dirty dishes are still on the table. A: "Did you write your essay?" B: "I did a bit, but I decided to take a break.
2. To tell a joke or perform a short comic routine, especially when done in a satirically serious or sincere manner. The comic has such a dry sense of humor that it can sometimes be hard to tell when he's doing a bit or actually being serious.
See also: bit
Farlex Dictionary of Idioms.

do (one's) bit

To make an individual contribution toward an overall effort.
See also: bit
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • do (one's) bit
  • do one's 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
  • champ