はら
腹
　
ペ
　
コ

takes genitive case の, adjectival noun or quasi-adjective

  1. hungry, starving.

Variations

Pronunciation Kanji Kana Is Common
はら
腹
　
ペ
　
コ
 腹ペコ はらペコ
はら
腹
　
ぺ
　
こ
 腹ぺこ はらぺこ
　
ハ
　
ラ
　
ペ
　
コ
 ハラペコ

Contained Kanji Breakdown

abdomen, belly, stomach
はら　フク (6th, N3)
month, moon
つき　ゲツ　ガツ (1st, N5)
return, repeat, repeatedly
person(人) variant
day, sun, Japan
ひ　にっ　ニチ (1st, N5)
late, delayed, winter radical (no. 34)
チ　しゅう (Kentei 1)