It’s a portmanteau neologism. And I’ve done a video about it, which largely explains itself, so here it is:
(You’ll need YouTube annotations switched on – if the various links don’t come up at the appropriate moments, use the menu on the triangle in the bottom right-hand corner to switch them on.)
“Portmanteau neologism” is the best phrase since “hashtag taxonomy.”
Alex Foster would be proud.
#geekulele will be trending by tomorrow, mark my words.
Loving the nightmare tribute! x