Lol,
Nothing sinister I assure you.
I had to think up a nym in a hurry and one of my favourite sayings at the time was "Thrice cursed abomination of satan!" and "AbominibleWombat" was too much of a mouthful.
**edit** Plus I couldn't (and can't ) spell it right best 2 out of 3. **end edit**
I have to admit I can't remember why it had to be wombat though.
dr del