Green’s Dictionary of Slang

get up and get v.

also get up and dig, git up and git

1. (US) to leave in a hurry, to move rapidly; to act energetically.

C. Cotton Songster 10: Poor Mexico’s in trouble, but the time will come, ‘you bet,’ When Monsieur will be invited to just ‘get up and get’ [DA].
Fox Little Shepherd 228: A voice bellowed from the rear [...] ‘Git up and git, boys!’ That was the order for the charge .
[US] DN III 117: sIN, Get up and dig... To rush; to race; to hurry. ‘Watch this horse get up and dig.’ [Ibid.] 397: nwAR, Get up and dig... To rush, race, hurry. ‘You’ll have to get up and dig if you beat him.’.
[US] PADS 15.66: NH, Get up and get... Leave quickly.
[US] in DARE.

2. in attrib. use of sense 1.

[UK]Belfast Morn. News 13 Dec. 3/8: A git-up-and-git vivacity that [...] elicited a whoop of pleasure from every galoot in the mob.