how do i make a ripple effect on my lines - animate

[idk123422]

how do i make a ripple effect on my lines i have seen a lot of animators that have a ripple effect im not sure if its called that here are some examples  https://www.youtube.com/watch?v=MyeCb99cb2Q, https://www.youtube.com/watch?v=kXj9Rrr2kU0 (the 1st example is mainly what im trying to do BTW skip the sponsor on the vid to because the effect isn't in it)  

[n. tilcheff · Accepted solution]

It's called 'boiling' line.

You can redraw, you can do a quick smoothen or you can try to use a plugin, called Boiler.

[_keyframer · Accepted solution]

We called it "Squigglevision" back in the day animating Dr Katz and the first 5 episodes of Home Movies (Cartoon Network). You can simply redraw each line frame-by-frame or create additional keyframes and select the artwork and click the "Smoothen" tool in the Properties panel to altar the vectors.

[Nick Gioia]

I don't know if this will help but he shows you how to make a ripple effect in a science flask. 

https://www.youtube.com/watch?v=ZOiwtZiKqcM

[Nick Gioia]

Try this tutorial. https://www.youtube.com/watch?v=SPw7I3SYMTY