It's a sports idiom. When the ball comes into play, it is on the field and in the hands of an athlete. When something comes into play, it is in action in whatever situation is being discussed.
Fair play is not an idiom - it means exactly what it says. Things are going along fairly.
improvise, wing it, play it by ear
it means when the government argue
do you mean you think it didnt come from a dairy & veggie farm
sit down come over to
It's not an idiom - it means just what it says. Something took "no" time to come about. It's an exaggeration, but the meaning is plain.
It's a card idiom. Your "hand" was the set of cards that you were dealt in the game. If you play the hand you were dealt, you don't try to cheat or get out of anything, but work with what you have.
Someone who is quick to come back with a witty, smart, or brilliant answer.
That means answering with the first thought(s) that come(s) to mind.
It's not really an idiom. It means "what are you thinking about."
RFP is not an idiom. It's an abbreviation.
It is not an idiom, it means your nose is itching.