There are two potential definitions for crimson ghost:
A. A classic Horror film from 1946.
B. The title character of the above mentioned film.
C. The mascot for the horror punk group The Misfits
, who adapted it from the above mentioned movie. It is featured on most of their merchandise and on most of their CDs/Singles. Due to it's dark look a lot of people wear it without knowing much, if anything, about the band.
Kid A: Hey did you ever see the movie The Crimson Ghost.
Kid B: I heard about it, but right now all I know is that it's the logo for The Misfits.