takes genitive case の, noun

Messages.yoji.
  1. cunning and experienced in the ways of the world, crafty and worldly-wise, sly old (fox).

Variations

Pronunciation Kanji Kana Is Common
海千山千 うみせんやません

Contained Kanji Breakdown

sea, ocean
カイ うみ み (2nd, N4)
water, water radical (no. 85)
さんずい
every
マイ ごと つね (2nd, N5)
person(人) variant
do not, must not, be not
ブ ム はは (Kentei 1)
thousand
セン ち かず (1st, N5)
mountain
やま サン セン (1st, N5)