Green’s Dictionary of Slang

can-do adj.

[can do phr.]

(orig. US) positive, enthusiastic, aggressive.

[UK]Indep. Rev. 25 Feb. 13: Max’s icy ‘can-do’ attitude.
[US]Week (US) 8 June 25: Dressed in loud Hawaiian shirts and ‘armed with can-do moxie’.
[UK]K. Sampson Killing Pool 223: I give him my best, can-do front, but fuck that.