An Aussie saying for someone who does stupid shit and is just a dickhead in general. It is used similarly to the word “Shit cunt” which is also an Australian slang.
“Yeah, hes/shes a goose cunt” or “Yeah, he/she was actinglike a goose cunt” etc.
Someone who prefers the easy, safe option; unwilling to take a risk.
One who, when playing Jenga, tends to push out a middle-brick instead of taking a side brick.
Go on, live a little, take the side brick you Middle-Brick Cunt.