plug away (at something)

plug away (at something)

To continue trying or working diligently (at something). I'm really not very good at math, but I've got to keep plugging away if I want to get into an engineering program. John's been plugging away at the new project, but I don't think he's enjoying it very much.
See also: away, plug

plug away (at something)

 and peg away (at something)
to keep trying something; to keep working at something. John kept pegging away at the trumpet until he became pretty good at it. I'm not very good at it, but I keep plugging away.
See also: away, plug