Learn English Online - Idiomatic Expressions
Definition of Idiomatic Expressions

What does Captain Obvious mean?
Meaning of idioms with examples...
Captain Obvious
The name Captain Obvious is used in conversation to draw attention to a self-evident fact.It is used sarcastically to mean that someone had just stated something obvious.
The phrase uses captain in the sense of a comic book super-hero.
Example(s):
John: Did you know that the earth turns around the sun?
Sara: Yes, thank you, Captain Obvious!
This idiom is in the names category