This reeks of the writers having to race against a deadline and naming the supervillain after the first thing they saw
Writer 1: How about Pencillon?

Writer 2: *snort* nah
Writer 2 passes a mirror with chopped up lines of cocaine on it
Writer 1: The Light Switchor? *snort*
Writer 2 (watching Writer 1 intently): I've got it. COCAINE!
Writer 1: you gotta be kidding me the C A C would never allow it.
Writer 2: OK - we just make it sound like cocaine...Pro-pain, Go-rain, Bo-dane....
Writer 1 and Writer 2 together: SNOWFLAME
DC needs to fux with Snowflame on the big screen. Get Danny McBride to play him and we're eating good.