Sometimes I just run a name generator outside of the game until I find something I like and or take a combo of names from them and mix them up some.
On my 80 Lock I went with Mortician because it fits and Undead Lock well. And loosely named mentioned one after Mort the Mortician from Bob’s.
Went with the name for this one just because I saw it fitting as well .
Good guy serial killer seemed to fit my Warlock perfectly.
warlock is my fav class but as im very bad at this game (all games) 
my favs are:
Ask AI tools, they can make pretty good names.
God people who necro threads must have IQ levels beyond our comprehension
They have to, because the alternative is that they’re dumber than wet crackers
Mattdemon
Demienwayne
Fel(ix)Faust
Smoldermort
Felscream
Tacofel
Johnnyblaze
Mephistofel
Felure
Locknloaded
Mattlock
Felinaring
Gotlocky
Hellena
Felicia
Soulcandi(with an i)
I named my Tauren Lock “Seitanic” after the meat alternative. I was proud of moo-self.
" Mooleficent" is a good one, you can have that for free!
Saw two running dungeons together. Mattdaemon and BenAfflock.
Had a Druid in classic named “SocialistBear”, so I guess I also do the two word thing, never thought about it.
My Warlock: CSheen
Why? Self proclaimed greatest warlock ever.
I don’t know how I came up with my name, it just sounded nice.
Feloff, Felaway, Feloffal… tehee