look up any word, like tribbing:
Any issue related to fish.
"He breaks out in hives when he eats fish... He has real fissues."

"There was a parasite in the fish tank causing the goldfish to die. That aquarium has major fissues"
by Rychenrolller January 26, 2013
fake issues.

(say fish-oos)
everyone has fissues.
by dominika March 23, 2008
Fucking issues......
That guy I was seeing had some serious fissues.
by artnotwar March 27, 2007