勝かち馬うまに乗のる

expression, godan verb (-ru)

side with the winner; ride coattails; jump on the bandwagon

Idiomatic expression meaning to align oneself with the winning side or a successful person for one's own benefit. Often carries a slightly opportunistic or shrewd connotation.

• 彼かれはいつも勝かち馬うまに乗のるのが上手うまい。

  He's always good at siding with the winner.

• 選せん挙きょのたびに勝かち馬うまに乗のろうとする人ひとがいる。

  There are people who try to jump on the bandwagon every election.