Can also be pronounced simply 'Filf' or 'Frilf' (not be be confused with Father I'd like to F**k, or Friends relative I'd like to f**k)

Definition #1
Fithly is a is a term used to describe things that considered cool by some people, usually people on the dole, or in a lower income bracket. That clearly shows they do not aren't very stylish. Some things include; cheap cars with body kits, mullets, wearing motocross jerseys in town, bad makeup and doing burnouts frequent.

Definition #2 (Often used by the lower class people described in definition #1)
Fithly means that something is good, or desirable.

Definition #3
Something that is disgusting, that you never want to come in contact with.

Using the example of two friends, Bob and Cam.
Definition #1
Bob: Look at that car coming down the street.
Cam: That car is so filthy
Bob: Ha ha, sure it.

Definition #2
Bob: Travis Pastrana's double backflip is awesome!
Cam: His Motorbike is so Filthy!

Definition #3
Bob: I just watched 2 Girls 1 Cup
Cam: How can you watch that, it is so filthy
Bob: Yeah, I get nightmares about it
by MrSafety April 05, 2010

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Filthy A dirty girl who is easy to sleep with.
Dam i hope you didnt catch a disease from that "filthy"
by mike karate February 24, 2008

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Something that is considered nice, or pleasing to ones opinion.
Did you see that whip? Yea that shit was filthy!
by Art-Dogg October 14, 2005

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A girl that sleeps with anyone in your crew if you ask. a.k.a common street filth.

Guy: Marie is coming over!
Guy 2: Why is that good?
Guy : Shes a filthy! she let me and my other friends fuck her in her car then we dropped her off at the gas station
by ShootinD5nukes December 02, 2007

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In Santa Cruz; a term to decribe a ugly bitch.
Jared-"Hey whos that?"
Mike-"no man shes filthy"
by J-SC-LOC November 14, 2007

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A nasty or extremely drunk slut, or a combination of both.
I could have you but you are too filthy.

That bitch was filthy last night.

Thats a filthy ass slut.

Dude lets get some filthy sluts tonight.

by 10duece November 07, 2007

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Wealthy, as in filthy rich.
"Face it, not guilty- that's how I stay filthy. Richer than Ritchie until you n*ggas come to get me."
(Notorious BIG, Hyptonize, 1997.)

We get picked up by this label, we gonna be livin' filthy son. Word is born.
by JGD July 19, 2006

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