used for expressing annoyance, disgust or shock AUSTRALIA
Shit a brick. There’s fifteen and a zac on the clock already. That’s nearly a note where I come from. — Barry Humphries, TheWonderfulWorld ofBarryMcKenzie, p. 8, 1968
Then I remembered. Football. Grand final. Wangaroo. The Thumper. Today. Shit-a-brick! — Phillip Gwynne, DeadlyUnna?, p. 86, 1998