Somebody who is willing to have sexual intercourse with someone based on instant attraction, due to their predisposition to sexual acts in general.
Ele: I just saw him across the club and next thing I know we were having sex.
Dora: Oh, you are such a sex fiend!
Dora: Oh, you are such a sex fiend!
by PuffGirl April 26, 2009
1. d00d: I can't stop humping my pillow.
mang: d00d, you're such a sex fiend.
2. d00d: Did you knock that pussy hard?
mang: d00d, I need more pussy!
d00d: Mang, you're such a sex fiend.
mang: d00d, you're such a sex fiend.
2. d00d: Did you knock that pussy hard?
mang: d00d, I need more pussy!
d00d: Mang, you're such a sex fiend.
by Furious Masturbator April 7, 2004
by claycrawford February 26, 2006
a person male or female who is sex crazed and always horny they can't get enough sex and that includes masterbation also known as a sex addict.
Man 1:Damn my bitch is a sex fiend from hell, she always wants to fuck im getting too tired for this shit.
Man 2: Dude i don't see your problem.
Man 1: Why don't you fuck her then and see how long it takes you to get tired you mother fucker.
Man 2: Dude i don't see your problem.
Man 1: Why don't you fuck her then and see how long it takes you to get tired you mother fucker.
by ApacheWarrior November 15, 2009
One who loves wild sex and might bang someone based on instant attraction. May own lots of sex toys and equipment or fancy a spontaneous shag.
I met Nikki in a hotel lobby masturbating to a magazine. She took me to her castle, and I couldn't believe my eyes. She had so many devices, everything that money could buy. The lights went out, and she started to grind. She was such a sex fiend.
by The Wankster November 1, 2018
by Opruh Wimpfrey January 23, 2019
One of the greatest bands to emerge from the 80's London goff/deathrock scene, ASF make fun, dark music "that has resisted over 20 years worth of attempts at pigeonholing, issuing 12 barrier-breaking studio albums". Their music has been described as "a strange and unholy grafting together of percolating synth rhythms and a ghoulish, theatric aesthetic." Fronted by the raving Nik Fiend and the lovely Mrs. Fiend, Alien Sex Fiend still make amazing music to this day.
by Lakini Malich February 29, 2004