Yep Aphonic - these are all the real McCoy, though like doc I have never heard of a boobley - that's a weird one!
As for the insult "deadshit", that's very widely used but so are the two alternatives "dickhead" (which can then be gussied up as "richard cranium")and - I'm not sure if I should use asterisks but I'll err on the side of propriety -"f**kwit" .
Only other comment Aphonic is that we prefer "aussie" to "ozzie" - the latter is best saved for Mr Osbourne!