She has dreads, and she's a pirate, get it?!
Otherwise she's not so very dread. It's hard to be dread when you're squealing and bleating and giggling and wriggling around in the treasure. She's more than likely a cabin-girl, although she's liable to get promoted for wearing such a piratey top.

The jokes during the stream were along the lines of "Arrr...now all of ye surrender peaceable-like, or the lamb be gettin' the molasses candy!" and discussion of the crew watching in horror as...whatever she's doing goes on off-camera a-la- Muzzle, in "Road Rovers"