Makes victim shake
The Jelly-Legs Jinx (incantation unknown) is a jinx which is used to make the victim's legs tremble violently; it may be related to the Leg-Locker Curse.
This spell is covered in Professor Vindictus Viridian's book Curses and Counter-Curses. Rubeus Hagrid had to drag Harry Potter away from the book, as the jinxes contained were far beyond the capabilities of an eleven-year old.
- Harry Potter and the Philosopher's Stone
- Harry Potter and the Goblet of Fire
- Harry Potter and the Half-Blood Prince