Dobe is the Japanese slang word for "idiot". Chinese youngsters use it to refer to a ridiculous person who is a stranger, or a funny one who is a friend.

“逗比”是日语里用来形容笨蛋的俚语。中国的年轻人用它来形容那些荒唐的陌生人或好笑的朋友。

We can comprehend this composite word as a funny 2B. Simply put, it means someone is funny, a little silly and cute. With its widespread use, more and more people consider it a neutral word. If we use it to describe a stranger, we are more talking of a stupid stranger. If it alludes to a friend, then it is used to mock and make fun of the friend.

根据合成词原则可以理解为：挺逗的二比。简单的说，就是说某个人很逗，有点犯二犯傻，有点可爱。随着它的使用范围逐步扩大，越来越多人将它用作中性词。如果对陌生人说，指别人是傻叉的意思多一点。如果是好朋友之间说，那就是调侃和玩笑的意思多一点！

Example:

He's such a dobe. He used the dice to decide his answers in the multiple choice questions.

他就是个逗比。他用骰子决定多选题答案。