I've got an easier format: pick something you like, i.e. ninjas.
Make it sound like LOLspeak (google it), i.e. Teh Ninjah.
Combine all words, i.e. Tehninjah.
If you want a shorter version, take all vowels out i.e. THNNJH.
ExBooHugs sounds like a friendly ex-ghost, which reminds me of that Casper the friendly ghost. The movie was awful (cgi mixed with live action mixed with many special effects? nah), so the name is awful.
I don't think taking username advice from guy named "foldagerdk" is a good idea.
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"Can't very well use magic when your wand is out of bullets." - Homestuck
“If, by some strange coincidence, a hundred sharp pencils I was carrying embedded themselves in a third-party, would that be an accidental death?” - Nisemonogatari