People use decreased activity (for example) where decrease in activity would be more literally correct. For example, reasons for my decreased activity usually refers to reasons for a decrease, not to ...
I've been reading Nevil Shute books recently, and they are set in late-1940s Britain. As a consequence, the characters are always using expressions such as "frightfully good", "terribly good" and ...
What rhetorical device is the following statement using? She wears mink all day and fox all night. It's not a pun, it's not a syllepsis. Is there a word for false-puns of this sort?