'Skilene' is a term fans have given the romance between Skipper (a penguin) and Marlene (an otter) in 'Penguins of Madagaskar', both because they're lazy, and because they think it's cool to do so (whoever gave them that idea, I don't know). The very same people have little to no lives and are downright obsessed with the couple. (Eww, interspecies romance leads to what...?) Oh, and they're most likely girls. And yeah, they expect everyone to know what this 'Skilene' crap is, and never goes more specific.
On a few rare occasions, mature teenage guys also likes Skilene. If you run into someone, question their sexuality. Or don't.
Random girl: "Skilene is soooo cute!"
Random girl "Interests: Skilene :3"
Random girl: "lol i write fanfics on skilene"
Random 11 year old boy: "u mah favoreet skilene writer!!!!!!"