Formation
Morphological reading: eros / erotic + plastic.
The word treats erotic identity as plastic in the material sense: formable, deformable and capable of taking new shape. It becomes both adjective and manifesto-bearing identity.
Source
Earliest indexed occurrence: NPR2 'SOUND & STORY: James Quentin Devine' · 2024-09-30.
“--> 00:01:22,000 Okay. 40 00:01:22,000 --> 00:01:23,000 Erotoplastic Xanifesto. 41 00:01:23,000 --> 00:01:26,000 This is the one that…”
Why it matters
The point is not merely novelty. The collision arrives before the definition does. See The JQD word-machine and the lexicon entry.