"No weirder than 'crossbow guy'," she pointed out, shrugging. 'If we were going by nicknames, I would've just said I was a girl with medicine and Cheetos."
Okay, so Meredith was well-aware that she was talking, but he'd started it. She was fully prepared to point that out to him and while it was the opposite of the grown-up thing to do, she wasn't at all above it.