It's when you are having sex with a girl, you pull it out, and you punch her in the asshole afterwards. This works for men AND women, it is not specified on a specific sex.
Same as the definition of star crunching.
by Boningmonkey August 17, 2011
"Dude, did you get with Hannah last night"
"You know it. I totally gave her a Star Crunch!"
"Sweet dude, totally sweet."
"You know it. I totally gave her a Star Crunch!"
"Sweet dude, totally sweet."
by tblaforge June 23, 2007
Bottom tier snack cake. Most commonly consumed by roller operators and other homosexuals. In all areas of the world known as inferior in comparison to Zebra Cakes.
“Hey, did you see that fag eating a Star Crunch?”
“Well not everyone is bad ass enough to eat Zebra Cakes, and besides he clearly runs a roller”
“Well not everyone is bad ass enough to eat Zebra Cakes, and besides he clearly runs a roller”
by JusMe12345 September 10, 2022