We had an office manager/cleaner who I nicknamed Wicked Witch Of The West, from her obnoxious personality. Somebody must have told her, too, from the hints she dropped.
Years ago we had a new guy start and suddenly there was pee all over the unisex bathroom floors, so my work bestie and I called him “Puddles”.
Not currently, but I used to work with an obnoxious dumb guy named Tim we called Dim behind his back.
Had a coworker named Ed. HIs nickname was special.
My name isn’t Tim, but my coworkers, friends and family know me as Dim. I’ve never understood why.
Not a coworker, but when we lived in Florida, we’d frequently see a somewhat bedraggled bearded guy walking along the roads - always alone, never carrying anything, never on any sort of regular schedule. We just referred to him as Walking Dude. Then one day we realized we hadn’t seen him for quite some time. I’ve often wondered what became of him.
He went west and became famous as uglynakedguy?
We had a very vocal/loud/obnoxious redhead lady that went by the name of sonja…
You probably can guess her nick
When I was in Navy boot camp, my company commander assigned me to the position of company yeoman, a pretty sweet gig that got me excused from some of the more obnoxious chores. The guys all decided that I was to be known as “Radar.”
At my last plant, there was a guy who rather resembled a homeless junkie. My completely private nickname for him was “Undercover Boss.”
No … 
I can’t.
Can someone spoil the punchline for me, pretty please?
Yes red sonja…
I admit this was in the mid 90ies where the movie reference was probably a good bit fresher than 30 years later