I have no idea on the meaning of “give you undercover” in the following citation.
“ ’S’ up, Figgy?” he said, staring from Mrs. Figg to Harry and Dudley. “What ‘appened to staying undercover?” “I’ll give you undercover!” cried Mrs. Figg. “Dementers, you useless, skiving sneak thief!” (Harry Potter 5 [US Version]: p.22-23)
N.B.: He and Mrs. Figg were supposed to guard Harry without Harry’s knowledge, but while he was absent from the duty, dementers (evil ghosts) attacked Harry, when Mrs. Figg’s identity was exposed. This scene is just after he came back. (Dudley is a boy accidentally involved in the attack.)
Here are my questions. I’d be glad if you could help me.
- What’s the undercover’s part of speech?
- Is there any reason she’s using the same word as he?
- What’s the meaning of the whole sentence?