done a zena

When you ask something so obvious as you ask the question you realise you know the answer already.

Also

Asking for help with a task to realise you just haven't followed instructions

Excuse me how do I open this door labelled Pull, I've pushed it several times and it hasn't worked never mind I've done a Zena

I couldn't submit my essay online, so I did a zena and emailed it directly

Gone and done an Adblue

When you intend to do one thing and through distraction, incompetence or absent mindedness you do another.

An event with disastrous consequences that could easily be avoided with common sense or paying attention.

Used when carrying out a task and you do something that clearly was you being stupid and completely avoidable.

"I've gone and done an Adblue as I was bitching about Steve in a text to my mate Ken and sent it to Steve by accident."

"I've gone and done an Adblue and put the car in reverse rather than forward and drove the car through my downstairs wall"

you're done dennis

A term represented when someone is "done" or "beat" needs to be exasperated via a raspy voice otherwise it is not as effective.

*Dennis talks*

Mr Richy Rich: "YOU'RE DONE DENNIS. YA DONE.

Done like donny

Your time is past. If you were once relevant, you aren't now. You're an annoying fashion that needs to be forgotten. You're a pretend version of something serious, like a chicken dance.

That shit needs to go away, it's done like donny.

Schrödinger's Done

When a piece of software is considered complete until Karen from accounting comes up with some new stupid shit

Dave: Finally done with this horrible mess
Karen: Hey Dave, it would be great if we could add this feature no one asked for

Dave: Fucking Schrödinger's Done every god damn time

done a Hasan

Done a Hasan is a derogatory term commonly used in Sydney Australia, when one has F**ked something up. Doing a Hasan is often inferred to make a catastrophic F-up downplayed and humorous.

"you burnt the toast"- "Sorry I done a Hasan on that one"
*gets hit by car- "I done a real Hasan on crossing the road"

done star

Shut the fuck up and stop being an asshole.

You're being such an ass. Done Star.