前心貼著後脊梁

qiánxīntiēzhehòujǐliang ㄑㄧㄢˊ ㄒㄧㄣ ㄊㄧㄝ ˙ㄓㄜ ㄏㄡˋ ㄐㄧˇ ˙ㄌㄧㄤ

    • ravenously hungry
    • on very close and frank terms

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
front of the chest stuck to the spine
Meaning
Same as 前心贴后心: extremely hungry, or very close and frank with each other.

Sources