Definition from Wiktionary, the free dictionary
- (intransitive, idiomatic) continue at a (normally uninteresting) task.
- I must crack on with my essay
- 1888, Kipling, The Madness of Private Ortheris
- What's the use of cracking-on for nothing? Would you slip it now if you got the chance?
- (transitive, dated) To put on.
- to crack on more sail, or more steam