有很多小工具都叫xxx-O-Matic，这个O-Matic是什么意思？它有什么典故吗？

O-Matic is a way to form things that can do the said action automatically. The “Matic” part refers to “automatic” and the “O-” part is a very common word-combining unit in English.

O-Matic是说一个东西可以自动运行相应的功能。