|1.||play the accordion with you|
It is a sexual analogy meaning that you want to have sex/bang someone. It is a way of joking around and playing with someone telling them you want to hook up, but not making it obvious to the public.
"Codi, I want to play the accordion with you!" Shannon said.
"Okay Shannon, in your dreams" Codi said.
"I did dream about that!" Shannon said.