Green’s Dictionary of Slang

(Aus.) to urinate.

1983		R. Aven-Bray Ridgey-Didge Oz Jack Lang 13: He Edgared and jumped in it, and hit and missed himself with rage.
2001		D. Looser Boobslang [U. Canterbury D.Phil. thesis] 88/1: hit-and-miss v. to urinate.