1
buttocks of a horse being ridden or followed
2
Other forms
しり馬 【しりうま】 (search-only kanji form)
1
to follow suit;to imitate or follow someone blindly
アメリカの尻馬に乗るなというセリフに正面から反論するのが、どれほどしんどいことだったことか。
Just how tiresome was it to argue straight against the phrase "Don't blindly follow America's lead!"
2
to ride on someone's back;to ride someone's coattails;to take advantage (e.g. of another's popularity)
自民党が小泉人気の尻馬に乗った。
The LDP rode on the wave of Koizumi's popularity.
Other forms
尻馬にのる 【しりうまにのる】 (search-only kanji form) · しり馬に乗る 【しりうまにのる】 (search-only kanji form)