When both the right and left hand are used simultaneously in a column format to stroke the base of the penis and is moved up and down. The Thumbs can be gyrated in unison or in a destructive interference pattern so that they are out of phase and in harmony. First made popular by French men, it later caught on by German males and females due the extreme domination that can be involved in the extreme penis straddling.
by OMGWTFBBQ22 June 12, 2009