After hours on the airplane and a long drive, I'm bushed.
Origin of bushed
Possibly from Australian slang lost in the bush
American Heritage Dictionary of the English Language, 5th Edition
Bushed Sentence Examples
It was of the same type as Mallet's engine, and was made by simply bushing one cylinder of an ordinary two-cylinder simple engine, the bushed cylinder being the high-pressure and the other cylinder the low-pressure cylinder.
This is done by mounting the working wire on a metal plate made of the same metal as the working wire itself; thus if the working wire is of platinoid it must be mounted on a platinoid bar, the supports which carry the ends of the working wire being insulated from this bar by being bushed with ivory or porcelain.