"Mimblewimble, which prevents your opponent from accurately casting their next spell."
Gilderoy Lockhart [src]

The Tongue-Tying Curse (Mimblewimble),[1] also known as the Tongue-Tying Spell,[3] is a curse that ties the target's tongue in a knot, preventing them from making coherent speech. This feature also allows one to prevent the victim from incanting correctly, and hence—like the Silencing Charm—it is useful in duelling (though could be overcome with more advanced magic)[2]. It is covered in the book Curses and Counter-Curses.


In 1992, this spell was taught by Gilderoy Lockhart during the Duelling Club to help students to better defend themselves.

In 1997, Alastor Moody set up curses to protect the Order of the Phoenix headquarters at 12 Grimmauld Place. One of these curses was this spell. It was so placed to prevent Severus Snape from revealing the area's location to Lord Voldemort, as the properties of the Fidelius Charm protecting the house made Snape a Secret-Keeper when Albus Dumbledore died. The curse was intended to both "keep him out and bind his tongue if he tried to talk about the place." It is unknown what would occur if Snape tried to write the location on paper, which would also have passed on the secret of the house's location.

Harry Potter, Ron Weasley, and Hermione Granger were affected by this curse when they sought refuge at 12 Grimmauld Place after fleeing Death Eaters in 1997. A sensation of cold air whooshed over them, causing their tongues to curl backwards, making it impossible for them to speak. Though their tongues soon unravelled again, Ron made retching noises and Hermione stammered for a while afterwards.

Known practitioners

Behind the scenes

See also


Notes and references

  1. 1.0 1.1 Tongue-Tying Spell/Curse practise screen on Pottermore (see this image)
  2. 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 2.14 Harry Potter and the Chamber of Secrets (video game) - PC version
  3. "Curses and Counter-Curses" spell menu on Pottermore (see this image)
  4. Harry Potter and the Deathly Hallows, Chapter 9 (A Place to Hide)
  5. Harry Potter and the Philosopher's Stone, Chapter 5 (Diagon Alley)

Curses and Counter-Curses
Spells included in the book: Full Body-Bind Curse · Leg-Locker Curse · Jelly-Legs Curse · Pimple Jinx · Stickfast Hex · Tickling Hex · Tongue-Tying Curse · Hair Loss Curse