ほっぺたが落ちる ほっぺたがおちる to think something is delicious; to think something is scrumptious exp v1 Advanced ➥
問うに落ちず語るに落ちる とうにおちずかたるにおちる to keep a secret when asked about it, but let it slip inadvertently when chatting on another occasion exp v1 Advanced ➥