You are dirusexual, when you feel more consulted to the band Dir en grey than to the male or femalegender (or other human in general). You just love Dir en grey, more than everything. Dir en grey is your everything. You are just in love with Dir en grey, only with Dir en grey.
When you will do anything with either gender except you wont fuck women. Eg. You will date, grope, make-out, kiss females and males but you just wont have sex with a female
P1: "Hey man what sexuality preference are you"
P2: "Dicsexual, man"
P1: "Nice, Look at these chicks over there"
P2: "Yeah they are ok cant fuck them though"