Today's Idiom [1~5]

[1] This is no joking matter : "농담할 일이 아니다"

[2] run around with : "~ 나다"
ex) My husband running around with another woman.

[3] put (someone) on : "놀리다(농담하다)"

[4] shake up : "놀라게 하다"

[5] play the field : ".... 놀아나다"