A variation on the word dickhead which can be used in the same way.
Lupco: You're a fucken diged.
*wanks imaginary dick on forehead*
While dropping a tree around powerlines
Shane: Shit it's heading towards the powerlines!
Matt: Fucked that one up didn't ya diged?
While sitting here thinking about this article
Drew: Oi, give me an example for this definition.
Matt: Yea, righto diged.