fenslut 

A fenslut is a name for a New Zealander who goes through massive swings of being a slut to being dry like a desert.

Man last week he slept with seven people, this week it's zero! He's such a fenslut

fenslut by Calg89 April 5, 2019

funslut 

Someone who has too much fun...while you sit around and do nothing

Lexy is such a funslut.

funslut by Fergymon December 30, 2004

Fanslut

A person with a fierce dedication to more than one series.

I like so many series, I am such a fanslut.

Fanslut by Lexie the Shinigami April 3, 2012