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1.
To break up with/be broken up with by someone when you are not actually dating, or when you are casually hooking up.
Okay, so Matt just totally fettered me. We haven't even been dating!
by GHSwfu May 17, 2005
 
2.
An inbred or mentally challenged individual, usually hailing from the Southern States or remote parts of Canada (Toronto) quite often occupying space in the cubical next to yours at work.
"Quit being such a fetter, and give me back my f**king stapler."
by xcryptic March 18, 2004
 
3.
the combination of the words feel and better; fetter.
listening to this song makes me fetter.
by savvy momma May 20, 2009
 
4.
1. N, adj, or v. A synonym of any expletive word needed to be emphasized upon.

2. See Stancil (def 2)
You really fettered up that job. It's completely fubar'd

SHUT THE FETTER UP!!!
by Tic Shack February 15, 2012
 
5.
To make a party a great time
Good God. That party got fettered last night. I had the best time!
by Matt Fetter March 11, 2006