As I have previously stated, I have gotten back into Star Wars and gotten mildly obsessed with the clone wars tv show. This is one of my ocs for the bad batch/clone force 99 (they're in the unaired episodes and going to get their arc in season 7 OMFG I CANT WAIT). Basically, she was from the earlier days of the cloning project on Kamino, where they were experimenting a bit. The Kaminoans added in other alien DNA (maybe trandoshian) to try to give her thicker skin/senses, but it really backfired and they made a whole batch female. Most of them did have the tougher skin and heightened senses, so that's why they weren't scrapped. She was trained on Kamino separately, and when more clones with desirable genetic deficiencies popped up, she was put in a group with them.

I'm thinking that her nickname is either Mixup or Dragon (or something to do with the reptilian DNA in her). She's also a very creative swearer and is known to come up with tumblr-esque insults and threats.