What is Fis?
1.
Fucking Ididot Slut
the name you call a person who makes bad decisions and sleeps with a lot of people
a FIS is usually female
a FIS usually is a person who is or at one point was your friend
a FIS is a person including but not limited to:
-a 'friend' who has sex in front of you
-a 'friend' who has sex with the person who are fond of
-a 'friend' who makes fun of you for not having sex all the time
-a person who smokes TOO MUCH POT, smoking pot does not make them a fis but if it becomes ALL they talk about and do, then they just may be an FIS
1: "OH MY GOD, we were hanging out with that boy i like and she just fucked him, right in front of me!!!"
2: "what a FIS"
See
2.
when a person has to fart and pee at the same time.
Holy Shit, i hav yo Fis so dam bad.