a selection of random nicknames
At my job, at a student's union, we all have nicknames to use over the radio. Some of them have very interesting (and sometimes dodgy)stories behind them!
They include:

Teabag: first night of work he got told by some other stewards to go grab a cup of tea, and relax. The boss then gave him a b*llocking for sitting down whilst the others were working hard clearing up.

Date Rape: he was trying to help a girl having a bit of a domestic with her boyfriend. Date Rape would keep checking on her, eventually she got a bit scared of him and he replied with *look love, I'm not trying to date rape you or anything, just making sure you're ok!*

Nutf*ck: kept f*cking up the bolts that held railings together on a stage, requiring the use of an angle grinder after every shift to undo them.

Dingo (me): they linked my surname with the well-known australian beer...and dingoes are australian.

Wolfie: joined at the same time as me, got nicknamed after Dingo's sidekick in a cartoon.

Bert (shortened version of his own name), and another who joined at the same time was therefore named Ernie.

Gentle: ironic, seeing as he's huge.

Tarzan and Jane: two rather hefty American Footballers.

Scooby: because when he runs his legs go round fast like Scooby Doo's, and his body seems to stay still.

Bones: last name Jones

Mummy Lumb: last name Lumb

Others, to which I don't know the stories, include:
Fister, Butcher, Daps, Fifi, Frisbee, Kiss, Bully, Ballbag, Starburst, Pepe. There are others, but give me a moment to remember them! I'm new to this, after all!
(dingo_aber Put the chocolate in the bag and no-one gets hurt, Tue 23 May 2006, 14:28, Reply)