Tag help: that zig-zag shiver thing

What tags to we have for when someone's body develops a jagged, zig-zag line as a result of horror, fright, surprise, or disgust?

Example: The last panel of post #734991

hey heart_in_mouth lol

on topic: i don't quite see what you mean. i think the effect here comes from motion pictures of a very fast, shaky zoom.

I believe he means the zig-zaggy lines on Fate's shoulders in the last panel. I'm not sure if that even has a name... I guess surprised might cover it.

Maybe '/\/\/\'?

That's rather a different thing...

Yeah, I meant the shivers on Nanoha's shoulders. The effect has a lot of overlap with surprise, but you'll also see it when someone has a chill run down their spine.

I'd create a tag for it, but I don't know what to call it.

Oh. That.
I think it could also depict goosebumps or the fur of a cat when it's scared or about to attack. I'm just fishing here.

shiver sounds nice actually, but that's already aliased to trembling.