FailTeX 

A terribly typeset LaTeX document.

Student1: Did you see the file that John sent out?

Student2: Oh man, it was such a FailTex! The units where italicized and his table was made in Microsoft Paint!
Student1: Someone really needs to teach him how to LaTeX.

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"TeXShop gets mad at me whenever I try to compile my document. I'm such a FailTeXer"

FailTeX by FailTeXer October 9, 2012

Cead Mile Failte 

A traditional Irish Gaelic greeting meaning "A Hundred Thousand Welcomes"

Cead- Hundred
Mile- Thousand
Failte- Welcome(s)

Something you might see on a sign at an airport when arriving in Ireland

Tom went to answer the knock at the door and hollered "Cead mile failte!" as he answered it and saw his family from over in the states.

Cead Mile Failte by yaboymd January 20, 2019

Failternet

When your internet is so much of an epic fail, that it can only be described as failternet.
Usually used when your internet connection stops working frequently.

The word was first coined by Rakey.

Kelsey: Why did you leave us on Skype?
Rachel: Bah. Sorry, failternet!

Failternet by StillGoldenHeart July 24, 2009

Failexan 

A person who sucks in any sort of competitive gaming. Whether it be MMO-based or Shooter-based. A failexan always folds under pressure and nerd rages whenever it loses.

Joe: Dude, Jimmy is totally flipping nigger balls over losing that game.
John: Yeah, he always does that. He is such a failexan.

Failexan by Z makes all wordz cooler November 26, 2009

cead mile failte 

Literally means a hundred thousand welcomes...

Used as... "Hello", but only tourists in ireland use it or people who are talking to Irish people... Irish people don't actually use it themselves...

cead mile failte by Cully April 1, 2003

Failsexual 

When a guys looks gay, acts gay, talks gay, isn't gay. Girls wont sleep with him cause they think he is gay. Therefore he fail sexually.

Travis is a failsexual, cause he looks gay and isn't and can't get a girl cause they think he is gay.

Failsexual by che17 December 9, 2008

Friltex 

The hardest guy that there is

God damn, he is hard , like Friltex.

Friltex by Catty and Doggy November 10, 2018