It can be used as an adjective, noun, or verb.
A fench is someone who is old, and bloated. Otherwise known as the adorable little man from "Up!" Can be used positively, negatively, and neutrally!
Noun: You're such a fench, you just ate an entire pizza!
Adjective: Don't act so fenchy and let the handicapped person use the handicappedparking spot!
Verb: Go fench youself!
The anal version of a queef. (A queef being a mid- or post-coitus passing of wind from the vagina, but which is scientifically and more affectionately known as a 'pussy fart').
A fench typically takes shape as the release of air after an ass-fucking, either immediately as the anus first 'exhales' after pulling out, leading to seepage or leakage running out, or later afterwards, as a wet stamp on one's undergarments. A fench can include fecal matter, semen, and a smattering of lube.
A true fench will always contain material.
"Does the burger comes with fench fries? --Sorry, french fries?"
A guy goes into a store and asks the saleslady for some profilactics. She says "what size?". He doesn't know so she suggests he go out back and put his shlong in a hole in one of many holes in the fence and tell her which hole fits his shlong. So he gives it a shot and when he puts his shlong in one of the holes, the saleslady goes behind the fence and pleasures him orally making all kinds of slurping sounds and motions. After finishing, he comes back in the store and she asks "well, what size?" He says "I don't know what size, but I'll take a yard of that fence".
ren: i'm gonna hit ya, and punch ya..
stimpy+sven: noooo!!
ren: ohhh yes.. but first, i gotta take a wiz!
(ren unzips his fly and proceeds to Wiz (urinate) on said board game, shocking the shit out of himself)
A selfish person who sneaks a cup of coffee before the brewing cycle is complete thus causing the finished brew to be weak and bitter.
Worse yet is when mutiple Coffee Felchers team up to make the final brew undrinkable.
In History:During the Battle of the Alamo a feral Mexican wolfboy known only as the Chupacafe was sent into the Alamo by President General Antonio López de Santa Anna wherein he would coffee felch from the American defenders' morning coffee thusly disheartening those brave Texans.
It is theorized that all Coffee Felchers are the genetic offspring of this feral Chupacafe and a woman named Irene.
(Sips coffee)...YUCK!!!,those goddamn Coffee Felchers have been at it again.(Spits out coffee)