I've been curious lately to know why the term "frogging" is used for the painful process of ripping back hours - if not days - of work. No one I asked knew the answer and then last evening when I was reading "At Knit's End" I came across the following.
Frogging: the act of taking the knitting off the needles and pulling the working yarn to undo the stitches. This is done to unravel knitting completely or to pull the work out to a point before an error, when the knitting is replaced on needles. It is called "frogging" because you "rip-it, rip-it."