Gotta love the way australians think being polite and couth is achieved by using another word for f&^k that literally means f^&k.

"The gearbox is totally f&^ked! Oh, sorry Cheryl, didn't see you there. I mean it's rooted."

Kiwi! But yes, polite way of saying my hearing is fucked. Odd phrase... if I were to use that in the context of actual fucking, I'd consider it a vulgar way to put it!