Or, How To Post A GIF.
This...
<img src="https://i.giphy.com/media/l2Sq3KXmHYngGqUaA/giphy.webp"/>
...gets you this:

You need the URL of the GIF, not the page it's on. Ok so it's not exactly simple, but you can do it. Or not.
(Oddly with a very few gifs — like the NY Radar shot — you can up load them just like a regular image. Not sure why.)
Practice! Post funny or awesome gifs here.
"You just need to go at that shit wide open, hang on, and own it." —Camp