A combination [[sword]] and [[whip]]. Usually, this is a sword that splits into sections connected by an internal string, but can also apply to an extremely flexible sword.

Notable examples include:
* [[Isabella Valentine|Ivy]]'s weapon from the [i][[Soulcalibur]][/i] series
* [[Signum]]'s [[Laevatein (nanoha)|]] from the [i][[Mahou Shoujo Lyrical Nanoha]][/i] series
* [[Galient]]'s sword from [i][[Kikou-Kai Galient]][/i]
* [[Threaded Cane]] from [[Bloodborne]]
* [[Abarai Renji]]'s [[Zabimaru]] from [[Bleach]] (in its Shikai form)
* [[Brighid (xenoblade)|]]'s dual Whipswords from [[Xenoblade Chronicles 2]]
* [[Kanroji Mitsuri]]'s special Nichirin Katana from [[Kimetsu no Yaiba]]
* [[Byleth (fire emblem)|]]'s [[Sword of the Creator]] from [[Fire Emblem: Three Houses]]

Only use this tag if the whip nature is shown. Do not use it if the weapon is only in normal sword form. Do not confuse this tag with [[chainsword]], which is a sword with moving [[chainsaw]] parts.

Pixiv tags are 蛇腹剣 (lit. accordion sword) and ガリアンソード (Galient's sword).
蛇腹剣 ガリアンソード