Unsurprisingly, his first outraged instinct is to just attack her outright, and he snaps his tail in anticipation. But he's had a little time to come to terms with the unsettling transformation, and it's a little easier to think clearly, at least for this stretch of dream. Sure, this form could probably run her down without breaking a sweat (do jabberwocks sweat? That would be disgusting.) but if anyone had the wherewhithal to dream up a vorpal blade, it's her, and he's still got qualms about dying in dreams. Just in case.

The jabberwock lets out a bubbling hiss of annoyance. Oh, laugh it up. Perhaps the next time I'm in the dreaming and have hands I'll bring you back a gift. He can probably dream up TARDIS poison, right? Can he make something vague and let the dreaming fill in the details? Why does the thing he's envisioning say 'ACME' on the box? Stupid dreaming.