thanks Ira will look, no apps invented that do keyboard shortcuts that turn in to blurbs?
On the iDevice that is exactly what "Text Replacement" does. Set it up in the Preference and, for example, when you type "yt" on the keyboard, you will get "Yours truly,". Pick your key combinations and the associated replacement phrase.
Keep in mind that the iDevice keyboard is more limited—no function keys, no command, control, option, etc.
