Derived from a
small town in the US, silly is most often used as a noun to describe or act as a
substitute for anything
the speaker desires, but usually refers to something sexual in nature. Usually preceded by an article. (the silly)
"I can't find anything to write with. Go get me a silly."
"Put your clothes in the silly."
"They were doin' the silly
last night!"
"Hey baby,
wanna go do the silly? Eh eh?"
"
What the silly??"
"What in the silly were you thinking?!"