plug away
verb1
Informal To persist or continue, as with an effort.
- He kept plugging away at the work until it was done.
- The end is nigh (or at least it was supposed to be), but the Pacers in northern England kept plugging away providing a service while awaiting the much-delayed arrival of their replacements.2020 May 20, John Crosse, “Soon to be gone... but never forgotten”, in Rail, page 63, photo caption:
- Related terms
- chip away