The misty fug his breath had left on the window sparkled in the orange glare of the streetlamp outside (HBP3)
Definition
A thick, stuffy smelly atmosphere (NSOED).
An example would be 221 B Baker Street while Sherlock Holmes was thinking about a three-pipe problem - he was given to smoking while pondering such matters.
Commentary
Pensieve (Comments)
View 0 thoughts swirling around the pensieve. Add your own.