Definitions by Mr.ALegend
Courtesy Knuckles
When a male continuously strokes the clitoris of a female vagina with his knuckles, while at the same time he masturbates.
Last night me and my boyfriend had sex at the montage. As he pulled out he began to masturbate and give me courtesy knuckles. It was a blast!
Courtesy Knuckles by Mr.ALegend February 26, 2011