The act of changeing sexual positions without takeing your penis out. Sometimes refered to as the Manhatten Transfer.
Lisa went from doggy-style to reverse cowgirl without removeing Jed's dick and successfully completed the slippery nickel
by Sticky3030 February 06, 2010
1 more definition
When a nickel is soaked in a combination of sperm and urine and the nickel is then put into everyones mouth and swallowed
It was so crazy i actually wanted to do a slippery nickel
by Hornyforhire August 02, 2010