A fork of Rural Dictionary
Back in the day, when a man would get the drip, the doc would slap his other head with a wooden mallet to break up the infection. This wouldn't really do anything for the infection, but there are stories of wax shooting out of their ears, hence the term.
As a figure of speech, this has been applied interchangeably with getting one's PP slapped for a variety of reasons.
I pissed my boss off and I'm pretty sure I just got a waxjob (writeup).
My girl found out I went to the stripclub instead of fishing the other day and gave me a waxjob (asschewing) when I got back.