Word created by Stranger Things fans, it’s a combination of words ‘Vecna’ and ‘pussy’
“Jamie really put his whole vecnussy into Stranger Things”
A Vecnussy is Vecna's/001's/Henry Creel's bum cheeks.
Jamie: I'm popping my Vecnussy?
Jamie: ...
Jamie: *starts to pop off*
Me: *raining money on his Vecnussy*
Vecnussy is something you can put into everything (vecna's)
"where is my vecnussy?"