a dog's dinner字面意思一顿狗餐，喻指 “乱七八糟; 一件做得很糟糕的事”。

【例句】
He made a real dog's dinnerof that job.
他工作做得乱七八糟。

All the menus are designed to travel well, so they'll be warm, retain their texture and won't look like a dog's dinner when they come off the back of a bike.
所有菜品都被设计得能经得住长途运输，所以既能保持住食物的温度，又能保持口感，而且从自行车后座上被取下来时不会看起来一团糟。