Green’s Dictionary of Slang

(Aus.) to leave, to depart.

1983		R. Aven-Bray Ridgey-Didge Oz Jack Lang 10: He finished his pen and ink and decided to bat and ball back to his empty Timothy in the western suburbs.
1990		Tupper & Wortley Aus. Prison Sl. Gloss. 🌐 Bat and Ball. Escape. Rhyming slang for ‘stall’. Also has connotations of ‘taking one’s bat and ball and going home’.
1998		R.G. Barrett Mud Crab Boogie (2013) [ebook] ‘I’m running a bit late. I’d better bat and ball’.