When I worked at WebDevStudios, we spoke in gifs. I guess, these days, that makes me old. Whatever. I miss them. It represented a shared language even when the source of the gif was unknown. (I remember distinctly how it felt when I found the Key and Peele sketch from which this gem was taken:)
(It kinda felt like that ☝️)
Justin Sternberg even wrote an Alfred workflow called WDS Giffy which predated (in practice, if not in actuality) the gif-sharing service Giphy that pointed to his personal collection of gifs. I can't say for certain, but I think most of us used that, at least while I was there.