play fair
Behave honestly and honorably, obey the rules, as in Not every supplier we deal with plays fair, or We can't just leave them to find their own way back
that's not playing fair. Although this idiom conjures up playing by the rules in some game or sport, it actually has been used in this figurative way since the mid-1400s. Also see play the game.
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| a scrap or morsel of food left at a meal. |
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