Really odd method in application

Question

I just came across an odd method in some Ruby code, and I'm wondering if I'm missing something fundamental. It looks like this:

def funny
  !funny
end

What would this possibly return?

Answer 1

It would recurse until you got a stack overflow.

Answer 2

That would run recursively until you get a stack overflow.

Answer 3

It is a method labelled as being funny, which then contains !funny or literally, "not funny".

It recurses until there is a stack overflow.