play dirty

(informal)

to behave dishonestly, especially by cheating in a game He loses his temper from time to time, but he never plays dirty.

Name	Pronounced	Usage
Sophocles	SAHF-u-kleez (English)	Ancient Greek (Latinized)
Em	EM	English
Brita	BRIT-ah (Swedish), BREE-tah (Finnish)	Swedish, Norwegian, Danish, Finnish
Jarle	-	Norwegian
SÉRaphin	se-ra-FEN	French
Fae	FAY	English