as snug as a bug in a rug 非常舒适；舒舒服服

【例句】
I must dry some seaweed and line this crevice. I could be as snug as a bug in a rug.
我必须晒干一些海草并把这个裂缝塞好。我就会非常舒服了。

He's as snug as a bug in a rug. Put on a warm jumper and grab your gloves!
他穿上一件舒适的套头毛衣，戴上手套！