Based on the term "subussy", a "spongussy" is using Spongebob as a substitute for a pussy. Typically used by JimmyHere fans, this is a common phrase to throw into any conversation.
Jess: Well when a bunch of cats smoke together.
Ash: Oh then Princess has been in the smokussy community for a while now.
Jess: Ash, Princess is a boy.
The worst possible thing you could ever imagine times twenty—NOT TWENTY ONE OR TWENTY TWO, just twenty. That is Spookus. The ugliest cat you will ever know and ever know.