A rare sexual position preformed chiefly by chemists (when they do rarely get some ass) in which the male will insert his tiny-man into an erlenmeyer flask and use the newfound implement to club his partner in a location of his desire. The broken glass remaining on his tiny-man can be left on as an act of revenge.
"Hey, did you see that scar on Mrs. B's face? Looks like she goten The Erlenmeyer!"
di Geingis Kahn 16 maggio 2008