heirographics
Texts composed of ideograms, especially emojis.
It isn't possible to cut/paste a good example in this text box, but I can describe one (which, by the way, doesn't involve any particular language, but I defaulted to English below). To send birthday greetings in simple "heirographics," I use variations on this series of emojis: Partying face / champagne / birthday cake / hourglass / pistol aimed at hourglass .