The result of a drunk male attempting to insult another male on a Saturday night. The 'skin' part was due to the insultee weighing less than the insulter (a logical way to put someone down), the 'fuck' element used as it is always used in insults.
The act of putting spin on a ping pong ball and your opponent perfectly hits the spin back at you. Causing the ball to ricochet or bounce off the original hitters paddle faster, with more curve and in a direction not intended.
Example 1- I put so much spin on that ball, that when my friend Oz hit it back I spinfucked myself.
Example 2- I just I spinfucked myself playing ping pong.
Example 3-I am not sure how I lost that point. The ball came back so hard and fast that I simply got spinfucked.
Example 4-My buddy looked me in the eyes and instantly new he got spinfucked.
The state of being one finds oneself in after being repeatedly penetrated by a person with a below-the-knee amputation of a leg. Generally done in such a way that the remaining portion of the amputated leg is fully inserted into the orifice in question. Normally executed with a dominant female amputee as the "top" and a submissive male as the "bottom".
Trevor: "Dude! That wench just shinfucked James so hard that it might turn him straight!"
Simon: "For sure, dude! Why aren't there any girls in Millet like that?"