An acronym for Fat Nigger Slut.

Commonly used by white people.
by DJ JAM JAM June 7, 2017
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Fuck Nigga Shit: Somebody doing the most/too much, somebody doing unnecessary shit, or somebody messing up the vibe.
Kiki: Ole dude on that fns

Timi: whats fns?
kiki: fuck nigga shit.... he be doin the most and ruining the vibe.... he gomn.
by princesscici October 5, 2020
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Fuck Nigga Shit- somebody doing the most/too much, somebody doing something unnecessary, stupid or messing up the vibe.
josh: omm he on that fns
will: wym
josh: he always doin sum stupid or doing unnecessary shit.
by princesscici October 5, 2020
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it’s like MCM or WCW but it’s FNS Fine Nigga Saturday
who wants to be my FNS ??
by sandy cheeky February 16, 2019
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Fuck Nigga Shit
Means you’re being weird, doing something strange or out of pocket, being fake to your friends, or doing too much
Boy 1: Did you hear who Kallie slept with?

Boy 2: Yeah, Mark. She did it to get back at her ex.

Boy 1: Man, she on some FNS
by bigcheckcheeseboy12473 March 19, 2024
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Professional VALORANT player for OpTic Gaming formerly known as ENVY, FNS also stands for FiNeSse.
FNS is also a former CS:GO Pro playing for Counter Logic Gaming and also a team called ORGLESS with his friends
Matt "Wardell" Yu, Yassine "Subroza" Taoufik, Gage "Infinite" Green and Jacob "yAy" Whiteaker.

2022 VCT REYJAVIK CHAMPION
**FNS** really showed them in iceland how dominant the north american region is on valorant yeah?
by Anon #7 May 9, 2022
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