Pus isn't the Greek form so it's neither here nor there. Octopus is an English word and as such can be pluralized in numerous ways. Octopodes is my favorite though.
octakinthepiss
Octostopathese
Put some LSD in the tank.
OctoRave.
(Okay, maybe just don’t do the LSD just for the octorave…)
Cephaloflage
What do you call an octopus tentaclejob?
Idk tell me!