I learned new word-“cash in “from the Chapter 15 Of “The Third Ear” recently .

Original sentence：
“Cash in your laughing stock.”
“I chose, at the moment, to cash in on what was being offered.”

“ cash in “ means
“ take advantage of or exploit “

I try to practice making up sentences :

1. Let’s cash in on the fine weather and go flying a kite.
2. We should cash in on our profession to produce high quality films.
3. I think Bill should cash in on his perfect performance to become a professional actor.