muggle
/ˈmʌɡ(ə)l
/noun informal
A person who is not conversant with a particular activity or skill: she’s a muggle: no IT background, understanding, or aptitude at all...
- This is absolutely typical of the tourist authorities, who are behaving like a bunch of muggles.
- A neat spin on the driving test we muggles take as we ‘come of age’.
Origin
1990s: from mug1 + -le2; used in the Harry Potter books by J. K. Rowling to mean 'a person without magical powers'.