Fidolo 

Solo, alone, single

I leave my crew at the crib and roll fidolo.

Fidolo by Star September 29, 2003

fiyolo

Fuck it, you only live once.

fiyolo by goomba August 13, 2003

Fidlo

A person who plays why too much rocket league.

You're such a Fidlo

Fidlo by An actual duck May 16, 2021

Fiolo 

Argentinian slang for "pimp"

Other words like "cafiolo" "840" "ocho cuarenta" means "fiolo", too

This fiolo sold one woman

Fiolo by Ariadna March 12, 2010

Fidoodle

The act of sexual intercourse.

Bro 1: Yo bro! Alex and Mary were totally gonna fidoodle the other night!
Bro 2: I know, bro! Damn, I wish someone would fidoodle with me....

Fidoodle by Nue September 17, 2013

Finology 

Finology:
The study of human value exchange.
The study of money and value exchange.
The study of the relationships between human beings and money.
The study of minds, brains, customs and behaviors with respect to money and the money forces.
The theory or system of Finology.

I study finology when I reflect on how the waitress is bringing me food and knows that after we are done that she will get paid by me for her service.
When I earn and spend my money I am exchanging value with someone else with Finology. I think about my finological relationship between the value I create and the value others give me as I spend it.

Finology by WorthLiving June 18, 2018

fidollas 

Ebonics for "five dollars."

Street Talker: Can I borra fidollas? Me: Fi is a number?

fidollas by spel itt rite January 18, 2006