rollin' up my sleeves is a secretive way of saying masturbation. It works especially well if your penis (someone else's penis) is not circumsized.
parents: "son what's taking you and becky so long to get ready for the dance?"
son: "nothing dad. She's just rollin' up my sleeves."
son: "nothing dad. She's just rollin' up my sleeves."
by Dabruiser93 October 6, 2010