May refer to {1} a fanatical degree of determination that actually drives someone to pursue an interest or idea to the death, or {2} a super-hooked and eternally **grateful** fan of the (in)famous rock band.
I'm so filled with deadication that I'm gonna don my lightning-skull t-shirt and chain myself to a tree.
by QuacksO January 10, 2014
dedicating something to a dead person.
by Severa Leigh April 07, 2016