FIO 

Acronym for the phrase "Figure it out".

John- "What are you doing tonight?"

Jane- "Not sure yet, but I need to FIO."

FIO by Ya Boy FIO December 20, 2013

FIO 

Figure it out!
They say there aren't any silly questions.
They are wrong.
Google it, RTFM (Read the fucken manual), look at the FAQ, open a support case, post a question on a forum, ask someone who might know, try to solve it by yourself.

Then, and only then, you can ask me.

He asked me what's the currency on Mexico. I told him to FIO !

FIO by eyalnow March 8, 2017

FiO 

A young New York Rap artist

-WOW! Bro this song "Wish You Knew" is amazing.
-Who is this?
-FiO

FiO by Todawgliutethat up June 20, 2007

FIO 

The acronym for "Figure It Out"

When somebody (aka a pledge) keeps asking you stupid questions about a relatively minor task, you just tell them to "FIO"

FIO by Dane McLeod August 2, 2007

FIO 

Fart it out - used when someone is really upset and does not know how to express his/her emotions.

Person A: dude I'm gonna fail my exams. I don't know what to do
Person B: just FIO bro you'll be fine!

FIO by Avadavadooo January 11, 2018

FIO 

FIO: Basically means FUCK IT OFF

Say u meet an awful mess, say the word FIO. They won't have a clue.

FIO by THOMO August 31, 2007

Fio 

"Fap it out"

The pivotal part of any decision making process, in which you must masturbate to flush your body of all sexual influences, in order to clear your head and think critically about something. To be used specifically before calling ex girlfriends.

Example 1:

Person A: "Dude, I've been thinking about calling my ex girlfriend and trying to get her back"

Person B: "I don't know what to say man. Just Fio and see how you feel"

(one fap later:)

Person A: "Yeah man I Fio'd and thought about it, I'm soooo glad I didn't call her."

Person B: "Good thing you made sure to Fio before you did something stupid"

Fio by splav April 30, 2014