Harry Potter and the Goblet of Fire - Muggle Mother?
After Voldemort performs the Crucio curse on Harry, Voldemort tells him, "Your parents would be proud, especially your filthy muggle mother." Harry's mother is a mudblood, neither of her parents had magical powers. A "muggle" is a person with no magical powers. Since Lilly Potter was a witch, this is incorrect.
i see your point, but as muggle-born wizards are seen as scum in the eyes of Voldemort, it would have been much more insulting to say Harry's mother was a muggle, then saying muggle-born (and it would have been shorter to say)
i have a feeling that the script wirters decided to shorten the line, to make it seem more insulting, i dont think Voldemort would care too much about political correctness when it comes to muggles and muggle borns, he sees them as the same.
Ah, but Voldemort didn't acknowlege muggle-borns as true witches and wizards. Only pure-bloods could be witches and wizards in his eyes. Hence, the disregard for Lily's powers by calling her a "muggle."