How Funny Your Idea of ASL Would be

How funny your idea would be
If it could follow back to where
The origin idea was thought of,
Telling itself that, or maybe
Some other ideas told of it
And named that idea. It would be
As hard as tracking a river to its
Source, which would be impossible.
Like signs, rivers have no source.
They just automatically appear in
A place where they get wider,
And soon a real river comes along,
With fish and derbis--parameters
In ASL as you please, and someone
Has already compare them: non-manuals
(Facial expressions are popular in ASL) or,
Or some other sign language, which comes
at long last to realize that river, on its bank,
Appears as funny as the river. you can say
what you want to say. But I want your idea
To be as funny as any river without its source.