So you people can stop being confused all the time! I have created (with the help of a few others) an index of the jumps we have given names. You can look at it, and learn exactly what jump is what, as these are the most common jumps in all of fangames. If you guys can come up with a jump with a name that I missed, or come up with a name for a jump, and we can all agree on it, I'll add it to the index.
Edit: v0.2 - - - Added "Shuriken", "Super F", "Half-Diamond", "16px (small) gap", "M (again)"