Why do we say 'poker face' and other popular expressions

Poker Face Season 2 Update: Rian Johnson Series Now Filming poker face means The idiom poker face refers to a person's face that is hiding its emotions and thoughts Contents [ poker tournament setup What is POKER FACE meaning?

poker online for real money poker face definition 16:52:42 poker face definition  पोकर फेस डिफिनिशन: जानिए क्या है इसका मतलब। पोकर