Idioms Q

quiet down = be quiet; reduce the volume of activity, usually talking.
We had to ask the people behind us to quiet down during the movie.

quite a few = many
He has quite a few apples for sale.
There were quite a few people at the party last night--almost 40.

quit it = stop
When the boys got into a fight, their mother told them to quit it.
"Quit it right now," she said.