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it's a new arabic slang for cool, hot or awsome
You missed the party last night it was fallah
fallah by Mazin Quddus August 4, 2006

fallacio 

the extremely slobbery act of and/or the giving of excrutiatingly good oral sensations
Boy 1 - "damn that bitch gives some amazing fallacio"
Boy 2 - "yeah, and so does her mom now i know where she gets it from"
fallacio by tooSHAY September 11, 2007

fallacious 

Function: adjective
1 : embodying a fallacy
2 : tending to deceive or mislead : DELUSIVE
- fal·la·cious·ly adverb
- fal·la·cious·ness noun

(Merriam-Webster)
1 : a fallacious assumption
2 : fallacious testimony
fallacious by Dissipate May 12, 2004

fallability 

1) The potential for someone to fail at what they are appointed to do.

2) The predictable demise of a person or object.

3) The likelihood that a leader will not be powerful or head-strong enough to lead.
1) "The untrained Doctor has a high fallability factor"

2) "Steve Staunton's fallability far outweighs his managing potential"

3) "The new manager is a pussy thus he is the king of fallability"
fallability by martin83 October 11, 2007

Fallatio 

If I were to post a definition to an online dictionary, I'd make sure I looked the word up in a proper dictionary first, to verify my spelling and definition. It's FELLATIO, moron. It's Latin. Read a book. I can't wait to see how cunnilingus is spelled...
I wanted to show off my extensive, but incorrect, knowledge of proper sex terms, so I posted fallatio to the urban dictionary. Mocking ensued.
Fallatio by Sue August 11, 2004

Fallahago 

(Fal-la-ha-go)

1.Person who ruins a party or just brings the party down.

2. An insult to someone at a party
Ty: Oops, i just spilled the weed all over the floor.

Sean: You Fucking Fallahago!
Fallahago by Sean Cadwallader January 4, 2009
More from Urban Dictionary
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026
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