This doesn't really make sense.  The first time I heard the term was when I heard of The Living End.  By no means are they a hardcore band (even though many of the songs on their first album were pretty fast).  I think, though that punkabilly is a better and easier term to remember the crossover between punk and rockabilly, as it fuses the actual terms.  The word psychobilly sounds like it would have some psychadelic elements also in the sound.  - User:Slythefox