The claimed definition of "deaced" is "deceased", as an adjective. It's not meant to be a combination of morphenes -- it's just gibberish. Your proposed defin

The claimed definition of "deaced" is "deceased", as an adjective. It's not meant to be a combination of morphenes -- it's just gibberish. Your proposed definition is different from what's being discussed here. Regardless: recognized compound verbs and gerunds are listed in dictionaries (like "desensitize" or "delist"). What you're describing are informal coinage invented to and restricted to a limited subpopulation. I'd never heard those terms in my entire life until brought up in this discussion. I'd not call those words unless they showed up in something more authoritative than Wiktionary and HN.