look up any word, like cunt:
 
1.
During the course of anal sex a female or male begins to shit while a dick is still inside the ass. What makes it a dirty twinkie is when a bit of the shit goes inside the dick hole.
John: Wow, it's getting kind of hot in your ass.
Jane: That's because I'm giving you a dirty twinkie.
John: You nasty bitch! I'll get infected!
Jane: Don't worry I love the filling.
by Daizzle Baizzle July 17, 2009