Green’s Dictionary of Slang

chippy adj.3

[chirpy adj./chipper adj.]

cheerful, merry.

[UK]J.H.M. Abbott Tommy Cornstalk 205: ’E comes bowlin’ in, ’s chippy ’s if ’e’d bin to a bloomin’ dawg-fight.
[Aus]Sun. Times (Perth) 17 Sept. 1/4: The episode of the widow’s wheat is going to make a chippy column.
[UK]Gem 30 Sept. 20: You ought to be looking a bit more chippy now, I should think. We’ve come out of it all right.