尻馬に乗る しりうまにのる Meanings Expression, Godan verb to follow suit; to imitate or follow someone blindly to ride on someone's back; to ride someone's coattails; to take advantage (e.g. of another's popularity) Kanji 尻 buttocks. Read as しり. 馬 horse. Read as うま. 乗 ride. Read as のる. Word lists Idioms Jinuma: Japanese Dictionary · Word lists