snug as a bug in a rug字面意思“像虫子一样依偎在地毯上”，形容某人感到十分惬意 非常舒适，有时也简短用作Snug as a bug。

【例句】
You might sit as snug as a bug in a rug.
你不妨象毡毯中的臭虫那样舒服地坐着。

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