Slug away - Idioms by The Free Dictionary
slug away (at something) (redirected from slug away)
slug away (at something)
To continue trying or working diligently (at something); to plug away (at something). I'm really not very good at math, but I've got to keep slugging away if I want to get into an engineering program. John's been slugging away at the new project, but I don't think he's enjoying it very much.
References in periodicals archive
Not only will it slug away
dead skin cells but also wash away impurities and is a great quick-fix for those needing instant results.
Helped by the windy conditions at their home field, the girls prefer to slug away
You don't have superstars, but you need people who will just get in there and slug away