->''"Unappalled by the calm dignity of blameless womanhood, your minion has torn me from my spotless home, and dragged me, blindfold and shrieking, through hedges, over stiles, and across a very difficult country, and left me, helpless and trembling, at your mercy! Yet not helpless, coward sir, for approach one step -- nay, but the twentieth part of one poor inch -- and this poniard shall teach ye what it is to lay unholy hands on old Stephen Trusty's daughter!"''
-->-- '''Dame Hannah''', ''Theatre/{{Ruddigore}}''

The villain is [[IHaveYouNowMyPretty trying to have his way with a beautiful maiden]]. He lifts up her dress and things look bad... but what's this? The damsel has quietly pulled a knife from her garter! She stabs him, putting an end to his evil ways once and for all.

The Chastity Dagger is the favored weapon of [[ProperLady delicate, civilized young ladies]] in fantasy and historical works. It is almost always used as a means of self-defense when in danger of being raped, robbed or kidnapped, but a FemmeFatale may also use it in conjunction with her feminine charm to assassinate a male character while he is distracted. A more modern variation is the LittleUselessGun.

Subtrope of HiddenWeapons; TrouserSpace is favourite, but VictoriasSecretCompartment is another option. See also SilkHidingSteel.

For a fantastic, BodyHorror variation, see VaginaDentata.
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!!Examples:
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[[folder: Anime and Manga ]]

* While not a dagger, Casca from ''{{Berserk}}'' uses a chastity stick in order to [[EyeScream plunge it into the eye]] of a would-be rapist during the battle with Adon's soldiers.

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[[folder: Film ]]

* A double subversion in ''Film/RobinHoodPrinceOfThieves''; The Sheriff of Nottingham gives Maid Marian a dagger for protection. However she can look after herself and donates it to Robin's cause. Then, in the final battle [[spoiler: when the Sheriff's in full on IHaveYouNowMyPretty mode, Robin turns up and (after being disarmed) ultimately uses the dagger as a weapon of last resort to save her.]]
* PlayedStraight on the other hand by Maid Marion (note the different spelling) in ''Film/RobinHood2010''.
* ''RomancingTheStone''[='s=] FakeOutOpening ends this way. And the ex-ShrinkingViolet heroine resorts to a Chastity Switchblade before it's all over.
* In ''Film/SherlockHolmes'', thugs attempt to rob Irene Adler at knifepoint. Irene takes out a concealed knife and robs the robbers.
* This was a favorite tactic of Milady [=DeWinter=] in ''Film/TheThreeMusketeers1993''.
* In ''{{Troy}}'', Briseis stabs Agamemmnon this way during the sack of Troy.
* Combined with FanDisservice in ''Disney/TheEmperorsNewGroove'': Yzma pulls up her skirt, causing the protagonists to recoil in terror. Turns out she keeps her dagger there. They're both immensely relieved.

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[[folder: Literature ]]

* ''[[ConanTheBarbarian Conan the Buccaneer]]'' has another version - all the virgins of Zingara carry small knives to kill ''themselves'' (they value chastity a bit too highly).
* Discussed a couple of times in the ''Literature/{{Gor}}'' series; in ''Beasts of Gor'' Tarl strips a free woman and makes her comb her hair, where she has a poisoned needle hidden. At least one other time Tarl talks to a free woman about it too, saying she'd better not have a hidden dagger or it won't go well for her with her captors.
* Played with in the SienkiewiczTrilogy. The first woman chooses to stab herself instead, the second one iseasily disarmed, only for a henchman she had saved earlier to brain the villain with a blunt object and the third has no dagger but uses a pistol as an improvised blunt weapon and deals a hit that costs the villain an eye.
* In the SwordOfTruth book ''Stone of Tears'', Kahlan kills a would-be rapist with a ceremonial knife carved out of a human bone. She was half dead from poison at the time, and the book implies it wasn't her killing him, but the spirit of the man the bone used to belong to.
* In ''Literature/ThaisOfAthens'', a rich merchant tries kidnapping Thais' beautiful slave girl Eris. What he doesn't know is that Eris is an [[DarkActionGirl ex-priestess of a dark goddess]] and keeps enough hidden blades on her (near naked) body to leave him and his cronies GuttedLikeAFish on the ground before they even touch her.
* In the Literature/VorkosiganSaga, Barrayaran ladies traditionally carry "Vorfemme blades" (ornate concealable knives) for this purpose... And also, it is implied, to slit the throats of any mutant children they might bear. One character, musing on the tradition, points out that while the right to carry a dagger made you better armed than the peasants were allowed to be, your husband was allowed to carry two swords, so you were still outgunned; were the Vor lords really that scared of their ladies? Her companion reminds her of an ancestor of fearsome reputation, and she concedes that yes, perhaps the Lords ''should'' have been that afraid...
* In the ''{{Belgariad}}'' and sequels, Nadrak women have about four of them handy at all times. At least one of them is always on display to remind men of the consequences of taking liberties, with "lesser offenses" usually just earning a nasty scar.
** ''TheElenium'' and its sequels feature Mirtai, who always has knives on her person and more than once used them to protect her innocence after having been sold to a brothel. She even keeps knives strapped to her inner thighs to ensure that she can fight off any attacker. In fact, she once ''sharpened the end of a'' '''spoon''' when a little girl. Put it to good use and still has it
* In the first book of the ''{{Tales of the Otori}}'', Kaede uses a ''needle'' to defend herself against the feudal lord who had planned on raping her.
* Esmeralda has one in ''Literature/TheHunchbackOfNotreDame'', though she doesn't kill anyone with it.
* While Asha Greyjoy of ''Literature/ASongOfIceAndFire'' is [[ActionGirl far from a timid and ladylike virgin]], she's still had to learn to defend herself in the NoWomansLand that is the Iron Islands (possibly more than most women, even, as her tomboyish attitude causes a lot of the men to want to '[[RapePortrayedAsRedemption put her in her place]]'). She keeps a dagger in VictoriasSecretCompartment and an axe by her side at all times, and refers to the latter as her "husband" whenever men make allusions about her being unmarried and thus available.

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[[folder: Live-action TV ]]

* ''Series/GameOfThrones''
** Shae carries one on the night King's Landing is attacked by Stannis's fleet, insisting she won't be raped if the castle is taken.
** Catelyn Stark draws a knife when attacked by the Mountain Clans, though it's not clear if this is a last-ditch defense or to kill herself rather than face rape and a likely brutal death.
* The ''Franchise/StarTrek'' MirrorUniverse episodes heavily implied that this is one reason all of the women in the MirrorUniverse carry daggers in those BareYourMidriff outfits; Uhura in particular uses one to fend off Mirror Sulu's lecherous advances on her at one point.

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[[folder: Newspaper Comics ]]

* ''PrinceValiant'': Princess Aleta has one of these, and she uses it to great effect on numerous occasions, whether to free herself from ropes or to stab an unsuspecting villain.

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[[folder: Theatre ]]

* In ''Theatre/{{Ruddigore}}'', when Robin as Sir Ruthven Murgatroyd has Hannah kidnapped, she pulls a small dagger with which she menaces him in swashbuckling style. She releases it only to pick up a much larger sword and continues to advance on him as he cries for mercy.

[[/folder]]

[[folder: Video Games ]]

* ''VideoGame/{{Touhou}}'': Sakuya keeps a mind-boggling number of daggers in two bandoliers around her thighs.

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[[folder: Real Life ]]

* In old Spain, women used to carry a knife literally called "salvavirgo".
* A device invented in South Africa during a time when rape crimes were especially common was a combination of this and a ChastityBelt.

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