Shelf-work

When you're engaged in a sexual act and need the assistance of some furniture (preferably a shelf) to aid your performance.

We were going hard at it and both yelling for more so I got some more leverage off the book-shelf to bring it home, it was some seriously awesome shelf-work.

Oh my god, it was amazing, he had me screaming with his shelf-work, I think I gasm'd about seven times.