"She is really a moth in the wool"

Posted by ESC on May 13, 2003

In Reply to: "She is really a moth in the wool" posted by Ward A. Fredericks on May 13, 2003

:
: While the general idea of this is clear, it would be interesting to know the history or derivation of the expression.

I've never heard this phrase but it sounds like "snake in the grass." Something that's hidden and could do damage.