Green’s Dictionary of Slang

(Aus./N.Z., also Dunlop cheque) a cheque that has ‘bounced’, i.e. been marked ‘return to drawer’ by the bank.

1983		R. Aven-Bray Ridgey-Didge Oz Jack Lang 25: Dunlop Cheque Bouncing flap [i.e. cheque].
2001		D. Looser Boobslang [U. Canterbury D.Phil. thesis] 63/1: dunlop n. a cheque rendered invalid by lack of sufficient funds.
2002		Aussie Sl. Dict. 🌐 Dunlop cheque – cheque that bounced (the bank did not accept it, returned to you) Dunlop being famous for making tyres.