腹の皮が突っ張れば目の皮がたるむ

はらのかわがつっぱればめのかわがたるむ

腹の皮が突っ張れば目の皮が弛む

[haranokawagatsuparebamenokawagatarumu]

Definitions

1.expressions (phrases, clauses, etc.); Godan verb with 'mu' ending

one becomes sleepy when one's stomach is full; full stomach, sleepy head; when the skin of the belly is extended, the skin of the eyes droops