Dictionary

うおごころみずごころ
if you do a favor for somebody, you will get a return favor (lit: if fish is friendly toward water, water will be kind to fish, too.)
mutual back-scratching

Kanji in This Word

Kanji Meanings Readings
fish; fish ギョうおさかな-ざかな
heart; mind; spirit; heart; mind; spirit シンこころ-ごころ
water; water スイみずみず-